Home / 20,763.74-28,654.18-11,332.46

Finding the Fourth Proportional to 20,763.74, 28,654.18 and 11,332.46

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Solution

The fourth proportional to 20,763.74, 28,654.18 and 11,332.46 is: 15,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.74 : 28,654.18 = 11,332.46 : x
  2. Step 2: Convert to fraction form
    20,763.74/28,654.18 = 11,332.46/x
  3. Step 3: Cross multiply
    20,763.74x = 28,654.18 × 11,332.46
  4. Step 4: Simplify right side
    20,763.74x = 324,722,348.68
  5. Step 5: Solve for x
    x = 324,722,348.68/20,763.74
  6. Step 6: Final answer
    x = 15,638.91

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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.