Home / 40,135.96-55,386.66-22,231.72

Finding the Fourth Proportional to 40,135.96, 55,386.66 and 22,231.72

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Solution

The fourth proportional to 40,135.96, 55,386.66 and 22,231.72 is: 30,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.96 : 55,386.66 = 22,231.72 : x
  2. Step 2: Convert to fraction form
    40,135.96/55,386.66 = 22,231.72/x
  3. Step 3: Cross multiply
    40,135.96x = 55,386.66 × 22,231.72
  4. Step 4: Simplify right side
    40,135.96x = 1,231,340,716.86
  5. Step 5: Solve for x
    x = 1,231,340,716.86/40,135.96
  6. Step 6: Final answer
    x = 30,679.24

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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.