Home / 28,423.39-39,227.21-18,082.32

Finding the Fourth Proportional to 28,423.39, 39,227.21 and 18,082.32

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Solution

The fourth proportional to 28,423.39, 39,227.21 and 18,082.32 is: 24,955.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.39 : 39,227.21 = 18,082.32 : x
  2. Step 2: Convert to fraction form
    28,423.39/39,227.21 = 18,082.32/x
  3. Step 3: Cross multiply
    28,423.39x = 39,227.21 × 18,082.32
  4. Step 4: Simplify right side
    28,423.39x = 709,318,963.93
  5. Step 5: Solve for x
    x = 709,318,963.93/28,423.39
  6. Step 6: Final answer
    x = 24,955.47

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Half scale
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Double scale
Find fourth proportional to 28,424.39, 39,228.59 and 18,083.32
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.