Home / 20,147.81-30,211.28-9,044.94

Finding the Fourth Proportional to 20,147.81, 30,211.28 and 9,044.94

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Solution

The fourth proportional to 20,147.81, 30,211.28 and 9,044.94 is: 13,562.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.81 : 30,211.28 = 9,044.94 : x
  2. Step 2: Convert to fraction form
    20,147.81/30,211.28 = 9,044.94/x
  3. Step 3: Cross multiply
    20,147.81x = 30,211.28 × 9,044.94
  4. Step 4: Simplify right side
    20,147.81x = 273,259,214.92
  5. Step 5: Solve for x
    x = 273,259,214.92/20,147.81
  6. Step 6: Final answer
    x = 13,562.73

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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.