Home / 39,380.57-54,343.20-22,382.57

Finding the Fourth Proportional to 39,380.57, 54,343.20 and 22,382.57

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Solution

The fourth proportional to 39,380.57, 54,343.20 and 22,382.57 is: 30,886.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,380.57 : 54,343.20 = 22,382.57 : x
  2. Step 2: Convert to fraction form
    39,380.57/54,343.20 = 22,382.57/x
  3. Step 3: Cross multiply
    39,380.57x = 54,343.20 × 22,382.57
  4. Step 4: Simplify right side
    39,380.57x = 1,216,340,206.31
  5. Step 5: Solve for x
    x = 1,216,340,206.31/39,380.57
  6. Step 6: Final answer
    x = 30,886.81

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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.