Home / 38,785.28-53,519.80-21,791.48

Finding the Fourth Proportional to 38,785.28, 53,519.80 and 21,791.48

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Solution

The fourth proportional to 38,785.28, 53,519.80 and 21,791.48 is: 30,070.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.28 : 53,519.80 = 21,791.48 : x
  2. Step 2: Convert to fraction form
    38,785.28/53,519.80 = 21,791.48/x
  3. Step 3: Cross multiply
    38,785.28x = 53,519.80 × 21,791.48
  4. Step 4: Simplify right side
    38,785.28x = 1,166,275,651.30
  5. Step 5: Solve for x
    x = 1,166,275,651.30/38,785.28
  6. Step 6: Final answer
    x = 30,070.06

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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.