Home / 20,832.09-28,747.56-11,882.47

Finding the Fourth Proportional to 20,832.09, 28,747.56 and 11,882.47

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Solution

The fourth proportional to 20,832.09, 28,747.56 and 11,882.47 is: 16,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.09 : 28,747.56 = 11,882.47 : x
  2. Step 2: Convert to fraction form
    20,832.09/28,747.56 = 11,882.47/x
  3. Step 3: Cross multiply
    20,832.09x = 28,747.56 × 11,882.47
  4. Step 4: Simplify right side
    20,832.09x = 341,592,019.27
  5. Step 5: Solve for x
    x = 341,592,019.27/20,832.09
  6. Step 6: Final answer
    x = 16,397.40

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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.