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Finding the Fourth Proportional to 40,520.82, 55,918.80 and 22,615.82

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Solution

The fourth proportional to 40,520.82, 55,918.80 and 22,615.82 is: 31,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,520.82 : 55,918.80 = 22,615.82 : x
  2. Step 2: Convert to fraction form
    40,520.82/55,918.80 = 22,615.82/x
  3. Step 3: Cross multiply
    40,520.82x = 55,918.80 × 22,615.82
  4. Step 4: Simplify right side
    40,520.82x = 1,264,649,655.21
  5. Step 5: Solve for x
    x = 1,264,649,655.21/40,520.82
  6. Step 6: Final answer
    x = 31,209.87

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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.