Home / 18,448.56-25,470.24-12,481.20

Finding the Fourth Proportional to 18,448.56, 25,470.24 and 12,481.20

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Solution

The fourth proportional to 18,448.56, 25,470.24 and 12,481.20 is: 17,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.56 : 25,470.24 = 12,481.20 : x
  2. Step 2: Convert to fraction form
    18,448.56/25,470.24 = 12,481.20/x
  3. Step 3: Cross multiply
    18,448.56x = 25,470.24 × 12,481.20
  4. Step 4: Simplify right side
    18,448.56x = 317,899,159.49
  5. Step 5: Solve for x
    x = 317,899,159.49/18,448.56
  6. Step 6: Final answer
    x = 17,231.65

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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.