Home / 43,390.10-65,092.08-13,397.28

Finding the Fourth Proportional to 43,390.10, 65,092.08 and 13,397.28

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Solution

The fourth proportional to 43,390.10, 65,092.08 and 13,397.28 is: 20,098.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,390.10 : 65,092.08 = 13,397.28 : x
  2. Step 2: Convert to fraction form
    43,390.10/65,092.08 = 13,397.28/x
  3. Step 3: Cross multiply
    43,390.10x = 65,092.08 × 13,397.28
  4. Step 4: Simplify right side
    43,390.10x = 872,056,821.54
  5. Step 5: Solve for x
    x = 872,056,821.54/43,390.10
  6. Step 6: Final answer
    x = 20,098.06

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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.