Home / 40,125.36-55,373.07-22,221.78

Finding the Fourth Proportional to 40,125.36, 55,373.07 and 22,221.78

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Solution

The fourth proportional to 40,125.36, 55,373.07 and 22,221.78 is: 30,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,125.36 : 55,373.07 = 22,221.78 : x
  2. Step 2: Convert to fraction form
    40,125.36/55,373.07 = 22,221.78/x
  3. Step 3: Cross multiply
    40,125.36x = 55,373.07 × 22,221.78
  4. Step 4: Simplify right side
    40,125.36x = 1,230,488,179.46
  5. Step 5: Solve for x
    x = 1,230,488,179.46/40,125.36
  6. Step 6: Final answer
    x = 30,666.10

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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.