Home / 39,689.60-54,760.46-25,550.64

Finding the Fourth Proportional to 39,689.60, 54,760.46 and 25,550.64

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Solution

The fourth proportional to 39,689.60, 54,760.46 and 25,550.64 is: 35,252.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,689.60 : 54,760.46 = 25,550.64 : x
  2. Step 2: Convert to fraction form
    39,689.60/54,760.46 = 25,550.64/x
  3. Step 3: Cross multiply
    39,689.60x = 54,760.46 × 25,550.64
  4. Step 4: Simplify right side
    39,689.60x = 1,399,164,671.94
  5. Step 5: Solve for x
    x = 1,399,164,671.94/39,689.60
  6. Step 6: Final answer
    x = 35,252.68

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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.