Home / 40,543.50-55,949.40-22,638.78

Finding the Fourth Proportional to 40,543.50, 55,949.40 and 22,638.78

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Solution

The fourth proportional to 40,543.50, 55,949.40 and 22,638.78 is: 31,241.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,543.50 : 55,949.40 = 22,638.78 : x
  2. Step 2: Convert to fraction form
    40,543.50/55,949.40 = 22,638.78/x
  3. Step 3: Cross multiply
    40,543.50x = 55,949.40 × 22,638.78
  4. Step 4: Simplify right side
    40,543.50x = 1,266,626,157.73
  5. Step 5: Solve for x
    x = 1,266,626,157.73/40,543.50
  6. Step 6: Final answer
    x = 31,241.16

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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.