Home / 28,012.92-42,019.26-7,236.36

Finding the Fourth Proportional to 28,012.92, 42,019.26 and 7,236.36

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Solution

The fourth proportional to 28,012.92, 42,019.26 and 7,236.36 is: 10,854.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.92 : 42,019.26 = 7,236.36 : x
  2. Step 2: Convert to fraction form
    28,012.92/42,019.26 = 7,236.36/x
  3. Step 3: Cross multiply
    28,012.92x = 42,019.26 × 7,236.36
  4. Step 4: Simplify right side
    28,012.92x = 304,066,492.29
  5. Step 5: Solve for x
    x = 304,066,492.29/28,012.92
  6. Step 6: Final answer
    x = 10,854.51

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.