Home / 43,242.85-64,864.28-18,276.13

Finding the Fourth Proportional to 43,242.85, 64,864.28 and 18,276.13

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Solution

The fourth proportional to 43,242.85, 64,864.28 and 18,276.13 is: 27,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,242.85 : 64,864.28 = 18,276.13 : x
  2. Step 2: Convert to fraction form
    43,242.85/64,864.28 = 18,276.13/x
  3. Step 3: Cross multiply
    43,242.85x = 64,864.28 × 18,276.13
  4. Step 4: Simplify right side
    43,242.85x = 1,185,468,013.64
  5. Step 5: Solve for x
    x = 1,185,468,013.64/43,242.85
  6. Step 6: Final answer
    x = 27,414.20

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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.