Home / 38,827.20-58,240.80-11,125.20

Finding the Fourth Proportional to 38,827.20, 58,240.80 and 11,125.20

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Solution

The fourth proportional to 38,827.20, 58,240.80 and 11,125.20 is: 16,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,827.20 : 58,240.80 = 11,125.20 : x
  2. Step 2: Convert to fraction form
    38,827.20/58,240.80 = 11,125.20/x
  3. Step 3: Cross multiply
    38,827.20x = 58,240.80 × 11,125.20
  4. Step 4: Simplify right side
    38,827.20x = 647,940,548.16
  5. Step 5: Solve for x
    x = 647,940,548.16/38,827.20
  6. Step 6: Final answer
    x = 16,687.80

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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.