Home / 22,691.84-31,311.36-12,753.92

Finding the Fourth Proportional to 22,691.84, 31,311.36 and 12,753.92

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Solution

The fourth proportional to 22,691.84, 31,311.36 and 12,753.92 is: 17,598.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.84 : 31,311.36 = 12,753.92 : x
  2. Step 2: Convert to fraction form
    22,691.84/31,311.36 = 12,753.92/x
  3. Step 3: Cross multiply
    22,691.84x = 31,311.36 × 12,753.92
  4. Step 4: Simplify right side
    22,691.84x = 399,342,580.53
  5. Step 5: Solve for x
    x = 399,342,580.53/22,691.84
  6. Step 6: Final answer
    x = 17,598.51

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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.