Home / 18,625.62-25,667.24-15,443.52

Finding the Fourth Proportional to 18,625.62, 25,667.24 and 15,443.52

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Solution

The fourth proportional to 18,625.62, 25,667.24 and 15,443.52 is: 21,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.62 : 25,667.24 = 15,443.52 : x
  2. Step 2: Convert to fraction form
    18,625.62/25,667.24 = 15,443.52/x
  3. Step 3: Cross multiply
    18,625.62x = 25,667.24 × 15,443.52
  4. Step 4: Simplify right side
    18,625.62x = 396,392,534.28
  5. Step 5: Solve for x
    x = 396,392,534.28/18,625.62
  6. Step 6: Final answer
    x = 21,282.11

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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.