Home / 31,287.28-43,143.12-25,579.36

Finding the Fourth Proportional to 31,287.28, 43,143.12 and 25,579.36

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Solution

The fourth proportional to 31,287.28, 43,143.12 and 25,579.36 is: 35,272.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.28 : 43,143.12 = 25,579.36 : x
  2. Step 2: Convert to fraction form
    31,287.28/43,143.12 = 25,579.36/x
  3. Step 3: Cross multiply
    31,287.28x = 43,143.12 × 25,579.36
  4. Step 4: Simplify right side
    31,287.28x = 1,103,573,398.00
  5. Step 5: Solve for x
    x = 1,103,573,398.00/31,287.28
  6. Step 6: Final answer
    x = 35,272.27

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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.