Home / 18,259.38-25,175.10-15,238.84

Finding the Fourth Proportional to 18,259.38, 25,175.10 and 15,238.84

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Solution

The fourth proportional to 18,259.38, 25,175.10 and 15,238.84 is: 21,010.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.38 : 25,175.10 = 15,238.84 : x
  2. Step 2: Convert to fraction form
    18,259.38/25,175.10 = 15,238.84/x
  3. Step 3: Cross multiply
    18,259.38x = 25,175.10 × 15,238.84
  4. Step 4: Simplify right side
    18,259.38x = 383,639,320.88
  5. Step 5: Solve for x
    x = 383,639,320.88/18,259.38
  6. Step 6: Final answer
    x = 21,010.53

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Half scale
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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.