Home / 38,577.89-57,871.49-13,612.82

Finding the Fourth Proportional to 38,577.89, 57,871.49 and 13,612.82

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Solution

The fourth proportional to 38,577.89, 57,871.49 and 13,612.82 is: 20,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,577.89 : 57,871.49 = 13,612.82 : x
  2. Step 2: Convert to fraction form
    38,577.89/57,871.49 = 13,612.82/x
  3. Step 3: Cross multiply
    38,577.89x = 57,871.49 × 13,612.82
  4. Step 4: Simplify right side
    38,577.89x = 787,793,819.08
  5. Step 5: Solve for x
    x = 787,793,819.08/38,577.89
  6. Step 6: Final answer
    x = 20,420.87

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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.