Home / 27,420.80-41,132.66-8,702.30

Finding the Fourth Proportional to 27,420.80, 41,132.66 and 8,702.30

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Solution

The fourth proportional to 27,420.80, 41,132.66 and 8,702.30 is: 13,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.80 : 41,132.66 = 8,702.30 : x
  2. Step 2: Convert to fraction form
    27,420.80/41,132.66 = 8,702.30/x
  3. Step 3: Cross multiply
    27,420.80x = 41,132.66 × 8,702.30
  4. Step 4: Simplify right side
    27,420.80x = 357,948,747.12
  5. Step 5: Solve for x
    x = 357,948,747.12/27,420.80
  6. Step 6: Final answer
    x = 13,053.91

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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.