Home / 21,971.11-32,956.67-5,330.88

Finding the Fourth Proportional to 21,971.11, 32,956.67 and 5,330.88

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Solution

The fourth proportional to 21,971.11, 32,956.67 and 5,330.88 is: 7,996.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,971.11 : 32,956.67 = 5,330.88 : x
  2. Step 2: Convert to fraction form
    21,971.11/32,956.67 = 5,330.88/x
  3. Step 3: Cross multiply
    21,971.11x = 32,956.67 × 5,330.88
  4. Step 4: Simplify right side
    21,971.11x = 175,687,861.53
  5. Step 5: Solve for x
    x = 175,687,861.53/21,971.11
  6. Step 6: Final answer
    x = 7,996.31

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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.