Home / 20,746.26-28,629.71-11,793.76

Finding the Fourth Proportional to 20,746.26, 28,629.71 and 11,793.76

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Solution

The fourth proportional to 20,746.26, 28,629.71 and 11,793.76 is: 16,275.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.26 : 28,629.71 = 11,793.76 : x
  2. Step 2: Convert to fraction form
    20,746.26/28,629.71 = 11,793.76/x
  3. Step 3: Cross multiply
    20,746.26x = 28,629.71 × 11,793.76
  4. Step 4: Simplify right side
    20,746.26x = 337,651,949.65
  5. Step 5: Solve for x
    x = 337,651,949.65/20,746.26
  6. Step 6: Final answer
    x = 16,275.32

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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.