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Finding the Fourth Proportional to 21,711.51, 32,510.23 and 17,472.22

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Solution

The fourth proportional to 21,711.51, 32,510.23 and 17,472.22 is: 26,162.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,711.51 : 32,510.23 = 17,472.22 : x
  2. Step 2: Convert to fraction form
    21,711.51/32,510.23 = 17,472.22/x
  3. Step 3: Cross multiply
    21,711.51x = 32,510.23 × 17,472.22
  4. Step 4: Simplify right side
    21,711.51x = 568,025,765.85
  5. Step 5: Solve for x
    x = 568,025,765.85/21,711.51
  6. Step 6: Final answer
    x = 26,162.43

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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.