Home / 31,642.60-43,695.78-25,400.68

Finding the Fourth Proportional to 31,642.60, 43,695.78 and 25,400.68

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Solution

The fourth proportional to 31,642.60, 43,695.78 and 25,400.68 is: 35,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,642.60 : 43,695.78 = 25,400.68 : x
  2. Step 2: Convert to fraction form
    31,642.60/43,695.78 = 25,400.68/x
  3. Step 3: Cross multiply
    31,642.60x = 43,695.78 × 25,400.68
  4. Step 4: Simplify right side
    31,642.60x = 1,109,902,525.13
  5. Step 5: Solve for x
    x = 1,109,902,525.13/31,642.60
  6. Step 6: Final answer
    x = 35,076.21

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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.