Home / 20,041.20-27,629.64-16,891.92

Finding the Fourth Proportional to 20,041.20, 27,629.64 and 16,891.92

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Solution

The fourth proportional to 20,041.20, 27,629.64 and 16,891.92 is: 23,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,041.20 : 27,629.64 = 16,891.92 : x
  2. Step 2: Convert to fraction form
    20,041.20/27,629.64 = 16,891.92/x
  3. Step 3: Cross multiply
    20,041.20x = 27,629.64 × 16,891.92
  4. Step 4: Simplify right side
    20,041.20x = 466,717,668.51
  5. Step 5: Solve for x
    x = 466,717,668.51/20,041.20
  6. Step 6: Final answer
    x = 23,287.91

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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.