Home / 20,307.92-30,452.19-11,876.79

Finding the Fourth Proportional to 20,307.92, 30,452.19 and 11,876.79

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Solution

The fourth proportional to 20,307.92, 30,452.19 and 11,876.79 is: 17,809.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.92 : 30,452.19 = 11,876.79 : x
  2. Step 2: Convert to fraction form
    20,307.92/30,452.19 = 11,876.79/x
  3. Step 3: Cross multiply
    20,307.92x = 30,452.19 × 11,876.79
  4. Step 4: Simplify right side
    20,307.92x = 361,674,335.33
  5. Step 5: Solve for x
    x = 361,674,335.33/20,307.92
  6. Step 6: Final answer
    x = 17,809.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.