Home / 20,793.89-28,695.65-11,362.46

Finding the Fourth Proportional to 20,793.89, 28,695.65 and 11,362.46

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Solution

The fourth proportional to 20,793.89, 28,695.65 and 11,362.46 is: 15,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.89 : 28,695.65 = 11,362.46 : x
  2. Step 2: Convert to fraction form
    20,793.89/28,695.65 = 11,362.46/x
  3. Step 3: Cross multiply
    20,793.89x = 28,695.65 × 11,362.46
  4. Step 4: Simplify right side
    20,793.89x = 326,053,003.41
  5. Step 5: Solve for x
    x = 326,053,003.41/20,793.89
  6. Step 6: Final answer
    x = 15,680.23

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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.