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Finding the Fourth Proportional to 18,227.30, 27,340.97 and 10,430.65

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Solution

The fourth proportional to 18,227.30, 27,340.97 and 10,430.65 is: 15,645.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,227.30 : 27,340.97 = 10,430.65 : x
  2. Step 2: Convert to fraction form
    18,227.30/27,340.97 = 10,430.65/x
  3. Step 3: Cross multiply
    18,227.30x = 27,340.97 × 10,430.65
  4. Step 4: Simplify right side
    18,227.30x = 285,184,023.19
  5. Step 5: Solve for x
    x = 285,184,023.19/18,227.30
  6. Step 6: Final answer
    x = 15,645.98

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.