Home / 38,689.18-57,771.79-30,702.04

Finding the Fourth Proportional to 38,689.18, 57,771.79 and 30,702.04

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Solution

The fourth proportional to 38,689.18, 57,771.79 and 30,702.04 is: 45,845.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.18 : 57,771.79 = 30,702.04 : x
  2. Step 2: Convert to fraction form
    38,689.18/57,771.79 = 30,702.04/x
  3. Step 3: Cross multiply
    38,689.18x = 57,771.79 × 30,702.04
  4. Step 4: Simplify right side
    38,689.18x = 1,773,711,586.27
  5. Step 5: Solve for x
    x = 1,773,711,586.27/38,689.18
  6. Step 6: Final answer
    x = 45,845.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.