Home / 22,753.30-31,399.08-12,681.70

Finding the Fourth Proportional to 22,753.30, 31,399.08 and 12,681.70

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Solution

The fourth proportional to 22,753.30, 31,399.08 and 12,681.70 is: 17,500.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,753.30 : 31,399.08 = 12,681.70 : x
  2. Step 2: Convert to fraction form
    22,753.30/31,399.08 = 12,681.70/x
  3. Step 3: Cross multiply
    22,753.30x = 31,399.08 × 12,681.70
  4. Step 4: Simplify right side
    22,753.30x = 398,193,712.84
  5. Step 5: Solve for x
    x = 398,193,712.84/22,753.30
  6. Step 6: Final answer
    x = 17,500.48

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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.