Home / 20,260.67-30,391.30-9,167.72

Finding the Fourth Proportional to 20,260.67, 30,391.30 and 9,167.72

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Solution

The fourth proportional to 20,260.67, 30,391.30 and 9,167.72 is: 13,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.67 : 30,391.30 = 9,167.72 : x
  2. Step 2: Convert to fraction form
    20,260.67/30,391.30 = 9,167.72/x
  3. Step 3: Cross multiply
    20,260.67x = 30,391.30 × 9,167.72
  4. Step 4: Simplify right side
    20,260.67x = 278,618,788.34
  5. Step 5: Solve for x
    x = 278,618,788.34/20,260.67
  6. Step 6: Final answer
    x = 13,751.71

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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.