Home / 20,398.14-30,537.45-15,487.02

Finding the Fourth Proportional to 20,398.14, 30,537.45 and 15,487.02

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Solution

The fourth proportional to 20,398.14, 30,537.45 and 15,487.02 is: 23,185.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,398.14 : 30,537.45 = 15,487.02 : x
  2. Step 2: Convert to fraction form
    20,398.14/30,537.45 = 15,487.02/x
  3. Step 3: Cross multiply
    20,398.14x = 30,537.45 × 15,487.02
  4. Step 4: Simplify right side
    20,398.14x = 472,934,098.90
  5. Step 5: Solve for x
    x = 472,934,098.90/20,398.14
  6. Step 6: Final answer
    x = 23,185.16

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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.