Home / 40,149.78-55,407.14-22,245.06

Finding the Fourth Proportional to 40,149.78, 55,407.14 and 22,245.06

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Solution

The fourth proportional to 40,149.78, 55,407.14 and 22,245.06 is: 30,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,149.78 : 55,407.14 = 22,245.06 : x
  2. Step 2: Convert to fraction form
    40,149.78/55,407.14 = 22,245.06/x
  3. Step 3: Cross multiply
    40,149.78x = 55,407.14 × 22,245.06
  4. Step 4: Simplify right side
    40,149.78x = 1,232,535,181.02
  5. Step 5: Solve for x
    x = 1,232,535,181.02/40,149.78
  6. Step 6: Final answer
    x = 30,698.43

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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.