Home / 20,226.38-30,345.55-10,372.57

Finding the Fourth Proportional to 20,226.38, 30,345.55 and 10,372.57

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Solution

The fourth proportional to 20,226.38, 30,345.55 and 10,372.57 is: 15,561.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.38 : 30,345.55 = 10,372.57 : x
  2. Step 2: Convert to fraction form
    20,226.38/30,345.55 = 10,372.57/x
  3. Step 3: Cross multiply
    20,226.38x = 30,345.55 × 10,372.57
  4. Step 4: Simplify right side
    20,226.38x = 314,761,239.77
  5. Step 5: Solve for x
    x = 314,761,239.77/20,226.38
  6. Step 6: Final answer
    x = 15,561.92

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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.