Home / 21,280.78-31,934.94-9,593.29

Finding the Fourth Proportional to 21,280.78, 31,934.94 and 9,593.29

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Solution

The fourth proportional to 21,280.78, 31,934.94 and 9,593.29 is: 14,396.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280.78 : 31,934.94 = 9,593.29 : x
  2. Step 2: Convert to fraction form
    21,280.78/31,934.94 = 9,593.29/x
  3. Step 3: Cross multiply
    21,280.78x = 31,934.94 × 9,593.29
  4. Step 4: Simplify right side
    21,280.78x = 306,361,140.55
  5. Step 5: Solve for x
    x = 306,361,140.55/21,280.78
  6. Step 6: Final answer
    x = 14,396.14

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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.