Home / 21,227.86-31,841.75-5,645.49

Finding the Fourth Proportional to 21,227.86, 31,841.75 and 5,645.49

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Solution

The fourth proportional to 21,227.86, 31,841.75 and 5,645.49 is: 8,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.86 : 31,841.75 = 5,645.49 : x
  2. Step 2: Convert to fraction form
    21,227.86/31,841.75 = 5,645.49/x
  3. Step 3: Cross multiply
    21,227.86x = 31,841.75 × 5,645.49
  4. Step 4: Simplify right side
    21,227.86x = 179,762,136.11
  5. Step 5: Solve for x
    x = 179,762,136.11/21,227.86
  6. Step 6: Final answer
    x = 8,468.22

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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.