Home / 20,306.97-28,023.93-11,354.43

Finding the Fourth Proportional to 20,306.97, 28,023.93 and 11,354.43

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Solution

The fourth proportional to 20,306.97, 28,023.93 and 11,354.43 is: 15,669.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.97 : 28,023.93 = 11,354.43 : x
  2. Step 2: Convert to fraction form
    20,306.97/28,023.93 = 11,354.43/x
  3. Step 3: Cross multiply
    20,306.97x = 28,023.93 × 11,354.43
  4. Step 4: Simplify right side
    20,306.97x = 318,195,751.51
  5. Step 5: Solve for x
    x = 318,195,751.51/20,306.97
  6. Step 6: Final answer
    x = 15,669.29

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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.