Home / 26,424.72-39,644.40-21,540.42

Finding the Fourth Proportional to 26,424.72, 39,644.40 and 21,540.42

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Solution

The fourth proportional to 26,424.72, 39,644.40 and 21,540.42 is: 32,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,424.72 : 39,644.40 = 21,540.42 : x
  2. Step 2: Convert to fraction form
    26,424.72/39,644.40 = 21,540.42/x
  3. Step 3: Cross multiply
    26,424.72x = 39,644.40 × 21,540.42
  4. Step 4: Simplify right side
    26,424.72x = 853,957,026.65
  5. Step 5: Solve for x
    x = 853,957,026.65/26,424.72
  6. Step 6: Final answer
    x = 32,316.60

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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.