Home / 21,812.28-32,693.88-9,326.04

Finding the Fourth Proportional to 21,812.28, 32,693.88 and 9,326.04

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Solution

The fourth proportional to 21,812.28, 32,693.88 and 9,326.04 is: 13,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,812.28 : 32,693.88 = 9,326.04 : x
  2. Step 2: Convert to fraction form
    21,812.28/32,693.88 = 9,326.04/x
  3. Step 3: Cross multiply
    21,812.28x = 32,693.88 × 9,326.04
  4. Step 4: Simplify right side
    21,812.28x = 304,904,432.64
  5. Step 5: Solve for x
    x = 304,904,432.64/21,812.28
  6. Step 6: Final answer
    x = 13,978.57

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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.