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Finding the Fourth Proportional to 17,883.78, 24,691.59 and 15,989.22

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Solution

The fourth proportional to 17,883.78, 24,691.59 and 15,989.22 is: 22,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,883.78 : 24,691.59 = 15,989.22 : x
  2. Step 2: Convert to fraction form
    17,883.78/24,691.59 = 15,989.22/x
  3. Step 3: Cross multiply
    17,883.78x = 24,691.59 × 15,989.22
  4. Step 4: Simplify right side
    17,883.78x = 394,799,264.66
  5. Step 5: Solve for x
    x = 394,799,264.66/17,883.78
  6. Step 6: Final answer
    x = 22,075.83

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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.