Home / 21,227.61-31,841.38-5,645.24

Finding the Fourth Proportional to 21,227.61, 31,841.38 and 5,645.24

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Solution

The fourth proportional to 21,227.61, 31,841.38 and 5,645.24 is: 8,467.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.61 : 31,841.38 = 5,645.24 : x
  2. Step 2: Convert to fraction form
    21,227.61/31,841.38 = 5,645.24/x
  3. Step 3: Cross multiply
    21,227.61x = 31,841.38 × 5,645.24
  4. Step 4: Simplify right side
    21,227.61x = 179,752,058.71
  5. Step 5: Solve for x
    x = 179,752,058.71/21,227.61
  6. Step 6: Final answer
    x = 8,467.84

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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.