Home / 43,427.20-65,162.40-17,132.80

Finding the Fourth Proportional to 43,427.20, 65,162.40 and 17,132.80

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Solution

The fourth proportional to 43,427.20, 65,162.40 and 17,132.80 is: 25,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,427.20 : 65,162.40 = 17,132.80 : x
  2. Step 2: Convert to fraction form
    43,427.20/65,162.40 = 17,132.80/x
  3. Step 3: Cross multiply
    43,427.20x = 65,162.40 × 17,132.80
  4. Step 4: Simplify right side
    43,427.20x = 1,116,414,366.72
  5. Step 5: Solve for x
    x = 1,116,414,366.72/43,427.20
  6. Step 6: Final answer
    x = 25,707.72

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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.