Home / 27,862.25-38,449.49-15,115.07

Finding the Fourth Proportional to 27,862.25, 38,449.49 and 15,115.07

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Solution

The fourth proportional to 27,862.25, 38,449.49 and 15,115.07 is: 20,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,862.25 : 38,449.49 = 15,115.07 : x
  2. Step 2: Convert to fraction form
    27,862.25/38,449.49 = 15,115.07/x
  3. Step 3: Cross multiply
    27,862.25x = 38,449.49 × 15,115.07
  4. Step 4: Simplify right side
    27,862.25x = 581,166,753.36
  5. Step 5: Solve for x
    x = 581,166,753.36/27,862.25
  6. Step 6: Final answer
    x = 20,858.58

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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.