Home / 43,577.90-65,359-11,557.20

Finding the Fourth Proportional to 43,577.90, 65,359 and 11,557.20

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Solution

The fourth proportional to 43,577.90, 65,359 and 11,557.20 is: 17,333.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,577.90 : 65,359 = 11,557.20 : x
  2. Step 2: Convert to fraction form
    43,577.90/65,359 = 11,557.20/x
  3. Step 3: Cross multiply
    43,577.90x = 65,359 × 11,557.20
  4. Step 4: Simplify right side
    43,577.90x = 755,367,034.80
  5. Step 5: Solve for x
    x = 755,367,034.80/43,577.90
  6. Step 6: Final answer
    x = 17,333.72

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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.