Home / 18,443.39-25,441.89-15,237.73

Finding the Fourth Proportional to 18,443.39, 25,441.89 and 15,237.73

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Solution

The fourth proportional to 18,443.39, 25,441.89 and 15,237.73 is: 21,019.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.39 : 25,441.89 = 15,237.73 : x
  2. Step 2: Convert to fraction form
    18,443.39/25,441.89 = 15,237.73/x
  3. Step 3: Cross multiply
    18,443.39x = 25,441.89 × 15,237.73
  4. Step 4: Simplify right side
    18,443.39x = 387,676,523.30
  5. Step 5: Solve for x
    x = 387,676,523.30/18,443.39
  6. Step 6: Final answer
    x = 21,019.81

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Half scale
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Double 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.