Home / 38,577.86-57,871.41-13,612.75

Finding the Fourth Proportional to 38,577.86, 57,871.41 and 13,612.75

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Solution

The fourth proportional to 38,577.86, 57,871.41 and 13,612.75 is: 20,420.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,577.86 : 57,871.41 = 13,612.75 : x
  2. Step 2: Convert to fraction form
    38,577.86/57,871.41 = 13,612.75/x
  3. Step 3: Cross multiply
    38,577.86x = 57,871.41 × 13,612.75
  4. Step 4: Simplify right side
    38,577.86x = 787,789,036.48
  5. Step 5: Solve for x
    x = 787,789,036.48/38,577.86
  6. Step 6: Final answer
    x = 20,420.76

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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.