Home / 20,763.56-28,654.34-11,332.73

Finding the Fourth Proportional to 20,763.56, 28,654.34 and 11,332.73

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Solution

The fourth proportional to 20,763.56, 28,654.34 and 11,332.73 is: 15,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.56 : 28,654.34 = 11,332.73 : x
  2. Step 2: Convert to fraction form
    20,763.56/28,654.34 = 11,332.73/x
  3. Step 3: Cross multiply
    20,763.56x = 28,654.34 × 11,332.73
  4. Step 4: Simplify right side
    20,763.56x = 324,731,913.52
  5. Step 5: Solve for x
    x = 324,731,913.52/20,763.56
  6. Step 6: Final answer
    x = 15,639.51

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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.