Home / 40,419.20-55,782.60-22,517.12

Finding the Fourth Proportional to 40,419.20, 55,782.60 and 22,517.12

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Solution

The fourth proportional to 40,419.20, 55,782.60 and 22,517.12 is: 31,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,419.20 : 55,782.60 = 22,517.12 : x
  2. Step 2: Convert to fraction form
    40,419.20/55,782.60 = 22,517.12/x
  3. Step 3: Cross multiply
    40,419.20x = 55,782.60 × 22,517.12
  4. Step 4: Simplify right side
    40,419.20x = 1,256,063,498.11
  5. Step 5: Solve for x
    x = 1,256,063,498.11/40,419.20
  6. Step 6: Final answer
    x = 31,075.91

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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.