Home / 27,919.71-38,534.00-18,961.11

Finding the Fourth Proportional to 27,919.71, 38,534.00 and 18,961.11

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Solution

The fourth proportional to 27,919.71, 38,534.00 and 18,961.11 is: 26,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,919.71 : 38,534.00 = 18,961.11 : x
  2. Step 2: Convert to fraction form
    27,919.71/38,534.00 = 18,961.11/x
  3. Step 3: Cross multiply
    27,919.71x = 38,534.00 × 18,961.11
  4. Step 4: Simplify right side
    27,919.71x = 730,647,317.93
  5. Step 5: Solve for x
    x = 730,647,317.93/27,919.71
  6. Step 6: Final answer
    x = 26,169.59

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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.