Home / 20,722.32-28,593.56-11,645.88

Finding the Fourth Proportional to 20,722.32, 28,593.56 and 11,645.88

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Solution

The fourth proportional to 20,722.32, 28,593.56 and 11,645.88 is: 16,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.32 : 28,593.56 = 11,645.88 : x
  2. Step 2: Convert to fraction form
    20,722.32/28,593.56 = 11,645.88/x
  3. Step 3: Cross multiply
    20,722.32x = 28,593.56 × 11,645.88
  4. Step 4: Simplify right side
    20,722.32x = 332,997,168.53
  5. Step 5: Solve for x
    x = 332,997,168.53/20,722.32
  6. Step 6: Final answer
    x = 16,069.49

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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.