Home / 20,849.52-31,281.48-13,049.04

Finding the Fourth Proportional to 20,849.52, 31,281.48 and 13,049.04

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Solution

The fourth proportional to 20,849.52, 31,281.48 and 13,049.04 is: 19,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.52 : 31,281.48 = 13,049.04 : x
  2. Step 2: Convert to fraction form
    20,849.52/31,281.48 = 13,049.04/x
  3. Step 3: Cross multiply
    20,849.52x = 31,281.48 × 13,049.04
  4. Step 4: Simplify right side
    20,849.52x = 408,193,283.78
  5. Step 5: Solve for x
    x = 408,193,283.78/20,849.52
  6. Step 6: Final answer
    x = 19,578.07

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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.