Home / 40,145.97-55,390.12-23,148.87

Finding the Fourth Proportional to 40,145.97, 55,390.12 and 23,148.87

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Solution

The fourth proportional to 40,145.97, 55,390.12 and 23,148.87 is: 31,938.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,145.97 : 55,390.12 = 23,148.87 : x
  2. Step 2: Convert to fraction form
    40,145.97/55,390.12 = 23,148.87/x
  3. Step 3: Cross multiply
    40,145.97x = 55,390.12 × 23,148.87
  4. Step 4: Simplify right side
    40,145.97x = 1,282,218,629.29
  5. Step 5: Solve for x
    x = 1,282,218,629.29/40,145.97
  6. Step 6: Final answer
    x = 31,938.91

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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.