Home / 22,753.48-31,398.98-12,681.40

Finding the Fourth Proportional to 22,753.48, 31,398.98 and 12,681.40

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Solution

The fourth proportional to 22,753.48, 31,398.98 and 12,681.40 is: 17,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,753.48 : 31,398.98 = 12,681.40 : x
  2. Step 2: Convert to fraction form
    22,753.48/31,398.98 = 12,681.40/x
  3. Step 3: Cross multiply
    22,753.48x = 31,398.98 × 12,681.40
  4. Step 4: Simplify right side
    22,753.48x = 398,183,024.97
  5. Step 5: Solve for x
    x = 398,183,024.97/22,753.48
  6. Step 6: Final answer
    x = 17,499.87

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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.