Home / 42,191.20-63,311.10-15,914.80

Finding the Fourth Proportional to 42,191.20, 63,311.10 and 15,914.80

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Solution

The fourth proportional to 42,191.20, 63,311.10 and 15,914.80 is: 23,881.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,191.20 : 63,311.10 = 15,914.80 : x
  2. Step 2: Convert to fraction form
    42,191.20/63,311.10 = 15,914.80/x
  3. Step 3: Cross multiply
    42,191.20x = 63,311.10 × 15,914.80
  4. Step 4: Simplify right side
    42,191.20x = 1,007,583,494.28
  5. Step 5: Solve for x
    x = 1,007,583,494.28/42,191.20
  6. Step 6: Final answer
    x = 23,881.37

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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.