Home / 38,702.60-58,070.34-21,151.93

Finding the Fourth Proportional to 38,702.60, 58,070.34 and 21,151.93

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Solution

The fourth proportional to 38,702.60, 58,070.34 and 21,151.93 is: 31,736.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,702.60 : 58,070.34 = 21,151.93 : x
  2. Step 2: Convert to fraction form
    38,702.60/58,070.34 = 21,151.93/x
  3. Step 3: Cross multiply
    38,702.60x = 58,070.34 × 21,151.93
  4. Step 4: Simplify right side
    38,702.60x = 1,228,299,648.02
  5. Step 5: Solve for x
    x = 1,228,299,648.02/38,702.60
  6. Step 6: Final answer
    x = 31,736.87

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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.