Home / 40,142.42-55,399.66-22,239.08

Finding the Fourth Proportional to 40,142.42, 55,399.66 and 22,239.08

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Solution

The fourth proportional to 40,142.42, 55,399.66 and 22,239.08 is: 30,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142.42 : 55,399.66 = 22,239.08 : x
  2. Step 2: Convert to fraction form
    40,142.42/55,399.66 = 22,239.08/x
  3. Step 3: Cross multiply
    40,142.42x = 55,399.66 × 22,239.08
  4. Step 4: Simplify right side
    40,142.42x = 1,232,037,138.12
  5. Step 5: Solve for x
    x = 1,232,037,138.12/40,142.42
  6. Step 6: Final answer
    x = 30,691.65

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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.