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Finding the Fourth Proportional to 21,324.88, 32,001.90 and 7,473.88

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Solution

The fourth proportional to 21,324.88, 32,001.90 and 7,473.88 is: 11,215.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.88 : 32,001.90 = 7,473.88 : x
  2. Step 2: Convert to fraction form
    21,324.88/32,001.90 = 7,473.88/x
  3. Step 3: Cross multiply
    21,324.88x = 32,001.90 × 7,473.88
  4. Step 4: Simplify right side
    21,324.88x = 239,178,162.99
  5. Step 5: Solve for x
    x = 239,178,162.99/21,324.88
  6. Step 6: Final answer
    x = 11,215.92

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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.