Home / 20,747.32-28,630.14-11,793.58

Finding the Fourth Proportional to 20,747.32, 28,630.14 and 11,793.58

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Solution

The fourth proportional to 20,747.32, 28,630.14 and 11,793.58 is: 16,274.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.32 : 28,630.14 = 11,793.58 : x
  2. Step 2: Convert to fraction form
    20,747.32/28,630.14 = 11,793.58/x
  3. Step 3: Cross multiply
    20,747.32x = 28,630.14 × 11,793.58
  4. Step 4: Simplify right side
    20,747.32x = 337,651,846.50
  5. Step 5: Solve for x
    x = 337,651,846.50/20,747.32
  6. Step 6: Final answer
    x = 16,274.48

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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.