Home / 21,443.10-29,590.67-11,882.74

Finding the Fourth Proportional to 21,443.10, 29,590.67 and 11,882.74

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Solution

The fourth proportional to 21,443.10, 29,590.67 and 11,882.74 is: 16,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,443.10 : 29,590.67 = 11,882.74 : x
  2. Step 2: Convert to fraction form
    21,443.10/29,590.67 = 11,882.74/x
  3. Step 3: Cross multiply
    21,443.10x = 29,590.67 × 11,882.74
  4. Step 4: Simplify right side
    21,443.10x = 351,618,278.41
  5. Step 5: Solve for x
    x = 351,618,278.41/21,443.10
  6. Step 6: Final answer
    x = 16,397.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.