Home / 43,489.28-65,242.12-13,899.17

Finding the Fourth Proportional to 43,489.28, 65,242.12 and 13,899.17

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Solution

The fourth proportional to 43,489.28, 65,242.12 and 13,899.17 is: 20,851.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,489.28 : 65,242.12 = 13,899.17 : x
  2. Step 2: Convert to fraction form
    43,489.28/65,242.12 = 13,899.17/x
  3. Step 3: Cross multiply
    43,489.28x = 65,242.12 × 13,899.17
  4. Step 4: Simplify right side
    43,489.28x = 906,811,317.04
  5. Step 5: Solve for x
    x = 906,811,317.04/43,489.28
  6. Step 6: Final answer
    x = 20,851.38

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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.