Home / 21,750.72-32,631.26-7,711.97

Finding the Fourth Proportional to 21,750.72, 32,631.26 and 7,711.97

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Solution

The fourth proportional to 21,750.72, 32,631.26 and 7,711.97 is: 11,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750.72 : 32,631.26 = 7,711.97 : x
  2. Step 2: Convert to fraction form
    21,750.72/32,631.26 = 7,711.97/x
  3. Step 3: Cross multiply
    21,750.72x = 32,631.26 × 7,711.97
  4. Step 4: Simplify right side
    21,750.72x = 251,651,298.18
  5. Step 5: Solve for x
    x = 251,651,298.18/21,750.72
  6. Step 6: Final answer
    x = 11,569.79

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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.