Home / 21,227.42-31,841.10-5,645.05

Finding the Fourth Proportional to 21,227.42, 31,841.10 and 5,645.05

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Solution

The fourth proportional to 21,227.42, 31,841.10 and 5,645.05 is: 8,467.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.42 : 31,841.10 = 5,645.05 : x
  2. Step 2: Convert to fraction form
    21,227.42/31,841.10 = 5,645.05/x
  3. Step 3: Cross multiply
    21,227.42x = 31,841.10 × 5,645.05
  4. Step 4: Simplify right side
    21,227.42x = 179,744,521.95
  5. Step 5: Solve for x
    x = 179,744,521.95/21,227.42
  6. Step 6: Final answer
    x = 8,467.56

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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.