Home / 19,397.85-26,772.15-18,131.52

Finding the Fourth Proportional to 19,397.85, 26,772.15 and 18,131.52

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Solution

The fourth proportional to 19,397.85, 26,772.15 and 18,131.52 is: 25,024.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,397.85 : 26,772.15 = 18,131.52 : x
  2. Step 2: Convert to fraction form
    19,397.85/26,772.15 = 18,131.52/x
  3. Step 3: Cross multiply
    19,397.85x = 26,772.15 × 18,131.52
  4. Step 4: Simplify right side
    19,397.85x = 485,419,773.17
  5. Step 5: Solve for x
    x = 485,419,773.17/19,397.85
  6. Step 6: Final answer
    x = 25,024.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.