Home / 20,834.44-28,752.26-11,403

Finding the Fourth Proportional to 20,834.44, 28,752.26 and 11,403

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Solution

The fourth proportional to 20,834.44, 28,752.26 and 11,403 is: 15,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.44 : 28,752.26 = 11,403 : x
  2. Step 2: Convert to fraction form
    20,834.44/28,752.26 = 11,403/x
  3. Step 3: Cross multiply
    20,834.44x = 28,752.26 × 11,403
  4. Step 4: Simplify right side
    20,834.44x = 327,862,020.78
  5. Step 5: Solve for x
    x = 327,862,020.78/20,834.44
  6. Step 6: Final answer
    x = 15,736.54

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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.