Home / 21,575.95-32,371.70-7,538.04

Finding the Fourth Proportional to 21,575.95, 32,371.70 and 7,538.04

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Solution

The fourth proportional to 21,575.95, 32,371.70 and 7,538.04 is: 11,309.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.95 : 32,371.70 = 7,538.04 : x
  2. Step 2: Convert to fraction form
    21,575.95/32,371.70 = 7,538.04/x
  3. Step 3: Cross multiply
    21,575.95x = 32,371.70 × 7,538.04
  4. Step 4: Simplify right side
    21,575.95x = 244,019,131.78
  5. Step 5: Solve for x
    x = 244,019,131.78/21,575.95
  6. Step 6: Final answer
    x = 11,309.78

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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.