Home / 20,001.68-27,600.72-11,618.72

Finding the Fourth Proportional to 20,001.68, 27,600.72 and 11,618.72

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Solution

The fourth proportional to 20,001.68, 27,600.72 and 11,618.72 is: 16,032.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.68 : 27,600.72 = 11,618.72 : x
  2. Step 2: Convert to fraction form
    20,001.68/27,600.72 = 11,618.72/x
  3. Step 3: Cross multiply
    20,001.68x = 27,600.72 × 11,618.72
  4. Step 4: Simplify right side
    20,001.68x = 320,685,037.48
  5. Step 5: Solve for x
    x = 320,685,037.48/20,001.68
  6. Step 6: Final answer
    x = 16,032.91

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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.