Home / 20,244.78-30,368.97-5,453.76

Finding the Fourth Proportional to 20,244.78, 30,368.97 and 5,453.76

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Solution

The fourth proportional to 20,244.78, 30,368.97 and 5,453.76 is: 8,181.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,244.78 : 30,368.97 = 5,453.76 : x
  2. Step 2: Convert to fraction form
    20,244.78/30,368.97 = 5,453.76/x
  3. Step 3: Cross multiply
    20,244.78x = 30,368.97 × 5,453.76
  4. Step 4: Simplify right side
    20,244.78x = 165,625,073.83
  5. Step 5: Solve for x
    x = 165,625,073.83/20,244.78
  6. Step 6: Final answer
    x = 8,181.12

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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.