Home / 20,573.92-28,391.66-11,499.49

Finding the Fourth Proportional to 20,573.92, 28,391.66 and 11,499.49

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Solution

The fourth proportional to 20,573.92, 28,391.66 and 11,499.49 is: 15,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.92 : 28,391.66 = 11,499.49 : x
  2. Step 2: Convert to fraction form
    20,573.92/28,391.66 = 11,499.49/x
  3. Step 3: Cross multiply
    20,573.92x = 28,391.66 × 11,499.49
  4. Step 4: Simplify right side
    20,573.92x = 326,489,568.02
  5. Step 5: Solve for x
    x = 326,489,568.02/20,573.92
  6. Step 6: Final answer
    x = 15,869.10

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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.