Home / 20,730.22-28,606.67-11,776.54

Finding the Fourth Proportional to 20,730.22, 28,606.67 and 11,776.54

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Solution

The fourth proportional to 20,730.22, 28,606.67 and 11,776.54 is: 16,251.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730.22 : 28,606.67 = 11,776.54 : x
  2. Step 2: Convert to fraction form
    20,730.22/28,606.67 = 11,776.54/x
  3. Step 3: Cross multiply
    20,730.22x = 28,606.67 × 11,776.54
  4. Step 4: Simplify right side
    20,730.22x = 336,887,593.52
  5. Step 5: Solve for x
    x = 336,887,593.52/20,730.22
  6. Step 6: Final answer
    x = 16,251.04

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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.