Home / 40,391.07-55,735.64-23,400.78

Finding the Fourth Proportional to 40,391.07, 55,735.64 and 23,400.78

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Solution

The fourth proportional to 40,391.07, 55,735.64 and 23,400.78 is: 32,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,391.07 : 55,735.64 = 23,400.78 : x
  2. Step 2: Convert to fraction form
    40,391.07/55,735.64 = 23,400.78/x
  3. Step 3: Cross multiply
    40,391.07x = 55,735.64 × 23,400.78
  4. Step 4: Simplify right side
    40,391.07x = 1,304,257,332.80
  5. Step 5: Solve for x
    x = 1,304,257,332.80/40,391.07
  6. Step 6: Final answer
    x = 32,290.73

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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.