Home / 31,289.28-43,145.88-25,581.36

Finding the Fourth Proportional to 31,289.28, 43,145.88 and 25,581.36

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Solution

The fourth proportional to 31,289.28, 43,145.88 and 25,581.36 is: 35,275.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.28 : 43,145.88 = 25,581.36 : x
  2. Step 2: Convert to fraction form
    31,289.28/43,145.88 = 25,581.36/x
  3. Step 3: Cross multiply
    31,289.28x = 43,145.88 × 25,581.36
  4. Step 4: Simplify right side
    31,289.28x = 1,103,730,288.80
  5. Step 5: Solve for x
    x = 1,103,730,288.80/31,289.28
  6. Step 6: Final answer
    x = 35,275.03

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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.