Home / 28,172.91-42,135.17-25,073.31

Finding the Fourth Proportional to 28,172.91, 42,135.17 and 25,073.31

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Solution

The fourth proportional to 28,172.91, 42,135.17 and 25,073.31 is: 37,499.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.91 : 42,135.17 = 25,073.31 : x
  2. Step 2: Convert to fraction form
    28,172.91/42,135.17 = 25,073.31/x
  3. Step 3: Cross multiply
    28,172.91x = 42,135.17 × 25,073.31
  4. Step 4: Simplify right side
    28,172.91x = 1,056,468,053.95
  5. Step 5: Solve for x
    x = 1,056,468,053.95/28,172.91
  6. Step 6: Final answer
    x = 37,499.43

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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.