Home / 22,708.76-31,337.70-12,636.92

Finding the Fourth Proportional to 22,708.76, 31,337.70 and 12,636.92

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Solution

The fourth proportional to 22,708.76, 31,337.70 and 12,636.92 is: 17,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,708.76 : 31,337.70 = 12,636.92 : x
  2. Step 2: Convert to fraction form
    22,708.76/31,337.70 = 12,636.92/x
  3. Step 3: Cross multiply
    22,708.76x = 31,337.70 × 12,636.92
  4. Step 4: Simplify right side
    22,708.76x = 396,011,851.20
  5. Step 5: Solve for x
    x = 396,011,851.20/22,708.76
  6. Step 6: Final answer
    x = 17,438.73

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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.