Home / 29,115.60-43,659-13,523.28

Finding the Fourth Proportional to 29,115.60, 43,659 and 13,523.28

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Solution

The fourth proportional to 29,115.60, 43,659 and 13,523.28 is: 20,278.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,115.60 : 43,659 = 13,523.28 : x
  2. Step 2: Convert to fraction form
    29,115.60/43,659 = 13,523.28/x
  3. Step 3: Cross multiply
    29,115.60x = 43,659 × 13,523.28
  4. Step 4: Simplify right side
    29,115.60x = 590,412,881.52
  5. Step 5: Solve for x
    x = 590,412,881.52/29,115.60
  6. Step 6: Final answer
    x = 20,278.23

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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.