Home / 21,731.40-32,597.10-16,810.65

Finding the Fourth Proportional to 21,731.40, 32,597.10 and 16,810.65

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Solution

The fourth proportional to 21,731.40, 32,597.10 and 16,810.65 is: 25,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.40 : 32,597.10 = 16,810.65 : x
  2. Step 2: Convert to fraction form
    21,731.40/32,597.10 = 16,810.65/x
  3. Step 3: Cross multiply
    21,731.40x = 32,597.10 × 16,810.65
  4. Step 4: Simplify right side
    21,731.40x = 547,978,439.12
  5. Step 5: Solve for x
    x = 547,978,439.12/21,731.40
  6. Step 6: Final answer
    x = 25,215.98

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Similar ratio
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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.