Home / 42,195.20-63,317.10-15,918.80

Finding the Fourth Proportional to 42,195.20, 63,317.10 and 15,918.80

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Solution

The fourth proportional to 42,195.20, 63,317.10 and 15,918.80 is: 23,887.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,195.20 : 63,317.10 = 15,918.80 : x
  2. Step 2: Convert to fraction form
    42,195.20/63,317.10 = 15,918.80/x
  3. Step 3: Cross multiply
    42,195.20x = 63,317.10 × 15,918.80
  4. Step 4: Simplify right side
    42,195.20x = 1,007,932,251.48
  5. Step 5: Solve for x
    x = 1,007,932,251.48/42,195.20
  6. Step 6: Final answer
    x = 23,887.37

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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.