Home / 21,921.30-32,881.23-8,770.14

Finding the Fourth Proportional to 21,921.30, 32,881.23 and 8,770.14

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Solution

The fourth proportional to 21,921.30, 32,881.23 and 8,770.14 is: 13,154.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.30 : 32,881.23 = 8,770.14 : x
  2. Step 2: Convert to fraction form
    21,921.30/32,881.23 = 8,770.14/x
  3. Step 3: Cross multiply
    21,921.30x = 32,881.23 × 8,770.14
  4. Step 4: Simplify right side
    21,921.30x = 288,372,990.47
  5. Step 5: Solve for x
    x = 288,372,990.47/21,921.30
  6. Step 6: Final answer
    x = 13,154.92

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1.5x scale

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.