Home / 21,731.01-32,555.13-12,377.48

Finding the Fourth Proportional to 21,731.01, 32,555.13 and 12,377.48

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Solution

The fourth proportional to 21,731.01, 32,555.13 and 12,377.48 is: 18,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.01 : 32,555.13 = 12,377.48 : x
  2. Step 2: Convert to fraction form
    21,731.01/32,555.13 = 12,377.48/x
  3. Step 3: Cross multiply
    21,731.01x = 32,555.13 × 12,377.48
  4. Step 4: Simplify right side
    21,731.01x = 402,950,470.47
  5. Step 5: Solve for x
    x = 402,950,470.47/21,731.01
  6. Step 6: Final answer
    x = 18,542.65

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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.