Home / 19,520.76-29,288.02-12,972.92

Finding the Fourth Proportional to 19,520.76, 29,288.02 and 12,972.92

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Solution

The fourth proportional to 19,520.76, 29,288.02 and 12,972.92 is: 19,463.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.76 : 29,288.02 = 12,972.92 : x
  2. Step 2: Convert to fraction form
    19,520.76/29,288.02 = 12,972.92/x
  3. Step 3: Cross multiply
    19,520.76x = 29,288.02 × 12,972.92
  4. Step 4: Simplify right side
    19,520.76x = 379,951,140.42
  5. Step 5: Solve for x
    x = 379,951,140.42/19,520.76
  6. Step 6: Final answer
    x = 19,463.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.