Home / 40,139.64-55,393.92-22,236.32

Finding the Fourth Proportional to 40,139.64, 55,393.92 and 22,236.32

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Solution

The fourth proportional to 40,139.64, 55,393.92 and 22,236.32 is: 30,686.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.64 : 55,393.92 = 22,236.32 : x
  2. Step 2: Convert to fraction form
    40,139.64/55,393.92 = 22,236.32/x
  3. Step 3: Cross multiply
    40,139.64x = 55,393.92 × 22,236.32
  4. Step 4: Simplify right side
    40,139.64x = 1,231,756,654.20
  5. Step 5: Solve for x
    x = 1,231,756,654.20/40,139.64
  6. Step 6: Final answer
    x = 30,686.79

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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.