Home / 40,422.78-55,782.96-22,517.76

Finding the Fourth Proportional to 40,422.78, 55,782.96 and 22,517.76

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Solution

The fourth proportional to 40,422.78, 55,782.96 and 22,517.76 is: 31,074.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,422.78 : 55,782.96 = 22,517.76 : x
  2. Step 2: Convert to fraction form
    40,422.78/55,782.96 = 22,517.76/x
  3. Step 3: Cross multiply
    40,422.78x = 55,782.96 × 22,517.76
  4. Step 4: Simplify right side
    40,422.78x = 1,256,107,305.37
  5. Step 5: Solve for x
    x = 1,256,107,305.37/40,422.78
  6. Step 6: Final answer
    x = 31,074.24

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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.