Home / 38,337.30-57,434.67-20,821.86

Finding the Fourth Proportional to 38,337.30, 57,434.67 and 20,821.86

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Solution

The fourth proportional to 38,337.30, 57,434.67 and 20,821.86 is: 31,194.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,337.30 : 57,434.67 = 20,821.86 : x
  2. Step 2: Convert to fraction form
    38,337.30/57,434.67 = 20,821.86/x
  3. Step 3: Cross multiply
    38,337.30x = 57,434.67 × 20,821.86
  4. Step 4: Simplify right side
    38,337.30x = 1,195,896,657.89
  5. Step 5: Solve for x
    x = 1,195,896,657.89/38,337.30
  6. Step 6: Final answer
    x = 31,194.08

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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.