Home / 22,691.92-31,315.24-13,260.88

Finding the Fourth Proportional to 22,691.92, 31,315.24 and 13,260.88

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Solution

The fourth proportional to 22,691.92, 31,315.24 and 13,260.88 is: 18,300.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.92 : 31,315.24 = 13,260.88 : x
  2. Step 2: Convert to fraction form
    22,691.92/31,315.24 = 13,260.88/x
  3. Step 3: Cross multiply
    22,691.92x = 31,315.24 × 13,260.88
  4. Step 4: Simplify right side
    22,691.92x = 415,267,639.81
  5. Step 5: Solve for x
    x = 415,267,639.81/22,691.92
  6. Step 6: Final answer
    x = 18,300.24

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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.