Home / 40,143.88-55,391.52-22,908.38

Finding the Fourth Proportional to 40,143.88, 55,391.52 and 22,908.38

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Solution

The fourth proportional to 40,143.88, 55,391.52 and 22,908.38 is: 31,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,143.88 : 55,391.52 = 22,908.38 : x
  2. Step 2: Convert to fraction form
    40,143.88/55,391.52 = 22,908.38/x
  3. Step 3: Cross multiply
    40,143.88x = 55,391.52 × 22,908.38
  4. Step 4: Simplify right side
    40,143.88x = 1,268,929,931.67
  5. Step 5: Solve for x
    x = 1,268,929,931.67/40,143.88
  6. Step 6: Final answer
    x = 31,609.55

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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.