Home / 43,805.12-65,739.36-17,517.20

Finding the Fourth Proportional to 43,805.12, 65,739.36 and 17,517.20

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Solution

The fourth proportional to 43,805.12, 65,739.36 and 17,517.20 is: 26,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,805.12 : 65,739.36 = 17,517.20 : x
  2. Step 2: Convert to fraction form
    43,805.12/65,739.36 = 17,517.20/x
  3. Step 3: Cross multiply
    43,805.12x = 65,739.36 × 17,517.20
  4. Step 4: Simplify right side
    43,805.12x = 1,151,569,516.99
  5. Step 5: Solve for x
    x = 1,151,569,516.99/43,805.12
  6. Step 6: Final answer
    x = 26,288.47

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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.