Home / 28,165.82-38,853.14-18,082.94

Finding the Fourth Proportional to 28,165.82, 38,853.14 and 18,082.94

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Solution

The fourth proportional to 28,165.82, 38,853.14 and 18,082.94 is: 24,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.82 : 38,853.14 = 18,082.94 : x
  2. Step 2: Convert to fraction form
    28,165.82/38,853.14 = 18,082.94/x
  3. Step 3: Cross multiply
    28,165.82x = 38,853.14 × 18,082.94
  4. Step 4: Simplify right side
    28,165.82x = 702,578,714.75
  5. Step 5: Solve for x
    x = 702,578,714.75/28,165.82
  6. Step 6: Final answer
    x = 24,944.38

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Find fourth proportional to 14,082.91, 19,426.57 and 9,041.47
Half scale
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Double scale
Find fourth proportional to 28,166.82, 38,854.51 and 18,083.94
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.