Home / 21,618.58-32,433.14-9,131.90

Finding the Fourth Proportional to 21,618.58, 32,433.14 and 9,131.90

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Solution

The fourth proportional to 21,618.58, 32,433.14 and 9,131.90 is: 13,700.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.58 : 32,433.14 = 9,131.90 : x
  2. Step 2: Convert to fraction form
    21,618.58/32,433.14 = 9,131.90/x
  3. Step 3: Cross multiply
    21,618.58x = 32,433.14 × 9,131.90
  4. Step 4: Simplify right side
    21,618.58x = 296,176,191.17
  5. Step 5: Solve for x
    x = 296,176,191.17/21,618.58
  6. Step 6: Final answer
    x = 13,700.08

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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.