Home / 43,398.56-65,098.38-13,816.28

Finding the Fourth Proportional to 43,398.56, 65,098.38 and 13,816.28

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Solution

The fourth proportional to 43,398.56, 65,098.38 and 13,816.28 is: 20,724.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,398.56 : 65,098.38 = 13,816.28 : x
  2. Step 2: Convert to fraction form
    43,398.56/65,098.38 = 13,816.28/x
  3. Step 3: Cross multiply
    43,398.56x = 65,098.38 × 13,816.28
  4. Step 4: Simplify right side
    43,398.56x = 899,417,120.13
  5. Step 5: Solve for x
    x = 899,417,120.13/43,398.56
  6. Step 6: Final answer
    x = 20,724.59

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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.