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Finding the Fourth Proportional to 16,139.80, 24,210.90 and 5,750.20

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Solution

The fourth proportional to 16,139.80, 24,210.90 and 5,750.20 is: 8,625.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,139.80 : 24,210.90 = 5,750.20 : x
  2. Step 2: Convert to fraction form
    16,139.80/24,210.90 = 5,750.20/x
  3. Step 3: Cross multiply
    16,139.80x = 24,210.90 × 5,750.20
  4. Step 4: Simplify right side
    16,139.80x = 139,217,517.18
  5. Step 5: Solve for x
    x = 139,217,517.18/16,139.80
  6. Step 6: Final answer
    x = 8,625.73

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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.