Home / 22,211.26-30,654.38-12,779.82

Finding the Fourth Proportional to 22,211.26, 30,654.38 and 12,779.82

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Solution

The fourth proportional to 22,211.26, 30,654.38 and 12,779.82 is: 17,637.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,211.26 : 30,654.38 = 12,779.82 : x
  2. Step 2: Convert to fraction form
    22,211.26/30,654.38 = 12,779.82/x
  3. Step 3: Cross multiply
    22,211.26x = 30,654.38 × 12,779.82
  4. Step 4: Simplify right side
    22,211.26x = 391,757,458.61
  5. Step 5: Solve for x
    x = 391,757,458.61/22,211.26
  6. Step 6: Final answer
    x = 17,637.79

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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.