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Finding the Fourth Proportional to 16,487.70, 24,731.55 and 12,801.30

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Solution

The fourth proportional to 16,487.70, 24,731.55 and 12,801.30 is: 19,201.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,487.70 : 24,731.55 = 12,801.30 : x
  2. Step 2: Convert to fraction form
    16,487.70/24,731.55 = 12,801.30/x
  3. Step 3: Cross multiply
    16,487.70x = 24,731.55 × 12,801.30
  4. Step 4: Simplify right side
    16,487.70x = 316,595,991.02
  5. Step 5: Solve for x
    x = 316,595,991.02/16,487.70
  6. Step 6: Final answer
    x = 19,201.95

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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.