Home / 20,444.28-28,212.66-11,369.04

Finding the Fourth Proportional to 20,444.28, 28,212.66 and 11,369.04

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Solution

The fourth proportional to 20,444.28, 28,212.66 and 11,369.04 is: 15,689.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.28 : 28,212.66 = 11,369.04 : x
  2. Step 2: Convert to fraction form
    20,444.28/28,212.66 = 11,369.04/x
  3. Step 3: Cross multiply
    20,444.28x = 28,212.66 × 11,369.04
  4. Step 4: Simplify right side
    20,444.28x = 320,750,860.05
  5. Step 5: Solve for x
    x = 320,750,860.05/20,444.28
  6. Step 6: Final answer
    x = 15,689.03

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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.