Home / 20,517.10-30,710.85-16,110.70

Finding the Fourth Proportional to 20,517.10, 30,710.85 and 16,110.70

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Solution

The fourth proportional to 20,517.10, 30,710.85 and 16,110.70 is: 24,115.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.10 : 30,710.85 = 16,110.70 : x
  2. Step 2: Convert to fraction form
    20,517.10/30,710.85 = 16,110.70/x
  3. Step 3: Cross multiply
    20,517.10x = 30,710.85 × 16,110.70
  4. Step 4: Simplify right side
    20,517.10x = 494,773,291.10
  5. Step 5: Solve for x
    x = 494,773,291.10/20,517.10
  6. Step 6: Final answer
    x = 24,115.17

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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.