Home / 20,306.22-28,025.15-11,354.25

Finding the Fourth Proportional to 20,306.22, 28,025.15 and 11,354.25

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Solution

The fourth proportional to 20,306.22, 28,025.15 and 11,354.25 is: 15,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.22 : 28,025.15 = 11,354.25 : x
  2. Step 2: Convert to fraction form
    20,306.22/28,025.15 = 11,354.25/x
  3. Step 3: Cross multiply
    20,306.22x = 28,025.15 × 11,354.25
  4. Step 4: Simplify right side
    20,306.22x = 318,204,559.39
  5. Step 5: Solve for x
    x = 318,204,559.39/20,306.22
  6. Step 6: Final answer
    x = 15,670.30

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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.