Home / 18,788.76-25,869.48-15,950.25

Finding the Fourth Proportional to 18,788.76, 25,869.48 and 15,950.25

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Solution

The fourth proportional to 18,788.76, 25,869.48 and 15,950.25 is: 21,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.76 : 25,869.48 = 15,950.25 : x
  2. Step 2: Convert to fraction form
    18,788.76/25,869.48 = 15,950.25/x
  3. Step 3: Cross multiply
    18,788.76x = 25,869.48 × 15,950.25
  4. Step 4: Simplify right side
    18,788.76x = 412,624,613.56
  5. Step 5: Solve for x
    x = 412,624,613.56/18,788.76
  6. Step 6: Final answer
    x = 21,961.25

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.