Home / 28,254.13-39,031.20-22,581.43

Finding the Fourth Proportional to 28,254.13, 39,031.20 and 22,581.43

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Solution

The fourth proportional to 28,254.13, 39,031.20 and 22,581.43 is: 31,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.13 : 39,031.20 = 22,581.43 : x
  2. Step 2: Convert to fraction form
    28,254.13/39,031.20 = 22,581.43/x
  3. Step 3: Cross multiply
    28,254.13x = 39,031.20 × 22,581.43
  4. Step 4: Simplify right side
    28,254.13x = 881,380,310.62
  5. Step 5: Solve for x
    x = 881,380,310.62/28,254.13
  6. Step 6: Final answer
    x = 31,194.74

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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.