Home / 40,113.90-55,356.82-22,209.66

Finding the Fourth Proportional to 40,113.90, 55,356.82 and 22,209.66

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Solution

The fourth proportional to 40,113.90, 55,356.82 and 22,209.66 is: 30,649.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,113.90 : 55,356.82 = 22,209.66 : x
  2. Step 2: Convert to fraction form
    40,113.90/55,356.82 = 22,209.66/x
  3. Step 3: Cross multiply
    40,113.90x = 55,356.82 × 22,209.66
  4. Step 4: Simplify right side
    40,113.90x = 1,229,456,095.36
  5. Step 5: Solve for x
    x = 1,229,456,095.36/40,113.90
  6. Step 6: Final answer
    x = 30,649.13

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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.