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Finding the Fourth Proportional to 18,706.10, 28,060.11 and 17,760.22

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Solution

The fourth proportional to 18,706.10, 28,060.11 and 17,760.22 is: 26,641.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.10 : 28,060.11 = 17,760.22 : x
  2. Step 2: Convert to fraction form
    18,706.10/28,060.11 = 17,760.22/x
  3. Step 3: Cross multiply
    18,706.10x = 28,060.11 × 17,760.22
  4. Step 4: Simplify right side
    18,706.10x = 498,353,726.82
  5. Step 5: Solve for x
    x = 498,353,726.82/18,706.10
  6. Step 6: Final answer
    x = 26,641.24

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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.