Home / 21,382.18-32,059.68-18,754.96

Finding the Fourth Proportional to 21,382.18, 32,059.68 and 18,754.96

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Solution

The fourth proportional to 21,382.18, 32,059.68 and 18,754.96 is: 28,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.18 : 32,059.68 = 18,754.96 : x
  2. Step 2: Convert to fraction form
    21,382.18/32,059.68 = 18,754.96/x
  3. Step 3: Cross multiply
    21,382.18x = 32,059.68 × 18,754.96
  4. Step 4: Simplify right side
    21,382.18x = 601,278,016.01
  5. Step 5: Solve for x
    x = 601,278,016.01/21,382.18
  6. Step 6: Final answer
    x = 28,120.52

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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.