Home / 19,375.48-29,025.10-12,781.52

Finding the Fourth Proportional to 19,375.48, 29,025.10 and 12,781.52

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Solution

The fourth proportional to 19,375.48, 29,025.10 and 12,781.52 is: 19,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,375.48 : 29,025.10 = 12,781.52 : x
  2. Step 2: Convert to fraction form
    19,375.48/29,025.10 = 12,781.52/x
  3. Step 3: Cross multiply
    19,375.48x = 29,025.10 × 12,781.52
  4. Step 4: Simplify right side
    19,375.48x = 370,984,896.15
  5. Step 5: Solve for x
    x = 370,984,896.15/19,375.48
  6. Step 6: Final answer
    x = 19,147.13

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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.