Home / 40,390.80-55,741.13-23,395.78

Finding the Fourth Proportional to 40,390.80, 55,741.13 and 23,395.78

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Solution

The fourth proportional to 40,390.80, 55,741.13 and 23,395.78 is: 32,287.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,390.80 : 55,741.13 = 23,395.78 : x
  2. Step 2: Convert to fraction form
    40,390.80/55,741.13 = 23,395.78/x
  3. Step 3: Cross multiply
    40,390.80x = 55,741.13 × 23,395.78
  4. Step 4: Simplify right side
    40,390.80x = 1,304,107,214.43
  5. Step 5: Solve for x
    x = 1,304,107,214.43/40,390.80
  6. Step 6: Final answer
    x = 32,287.23

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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.