Home / 22,591.28-31,176.22-12,519.92

Finding the Fourth Proportional to 22,591.28, 31,176.22 and 12,519.92

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Solution

The fourth proportional to 22,591.28, 31,176.22 and 12,519.92 is: 17,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,591.28 : 31,176.22 = 12,519.92 : x
  2. Step 2: Convert to fraction form
    22,591.28/31,176.22 = 12,519.92/x
  3. Step 3: Cross multiply
    22,591.28x = 31,176.22 × 12,519.92
  4. Step 4: Simplify right side
    22,591.28x = 390,323,639.84
  5. Step 5: Solve for x
    x = 390,323,639.84/22,591.28
  6. Step 6: Final answer
    x = 17,277.62

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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.