Home / 40,109.90-55,351.50-22,205.97

Finding the Fourth Proportional to 40,109.90, 55,351.50 and 22,205.97

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Solution

The fourth proportional to 40,109.90, 55,351.50 and 22,205.97 is: 30,644.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,109.90 : 55,351.50 = 22,205.97 : x
  2. Step 2: Convert to fraction form
    40,109.90/55,351.50 = 22,205.97/x
  3. Step 3: Cross multiply
    40,109.90x = 55,351.50 × 22,205.97
  4. Step 4: Simplify right side
    40,109.90x = 1,229,133,748.46
  5. Step 5: Solve for x
    x = 1,229,133,748.46/40,109.90
  6. Step 6: Final answer
    x = 30,644.15

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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.