Home / 27,927.75-38,540.31-15,353.31

Finding the Fourth Proportional to 27,927.75, 38,540.31 and 15,353.31

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Solution

The fourth proportional to 27,927.75, 38,540.31 and 15,353.31 is: 21,187.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,927.75 : 38,540.31 = 15,353.31 : x
  2. Step 2: Convert to fraction form
    27,927.75/38,540.31 = 15,353.31/x
  3. Step 3: Cross multiply
    27,927.75x = 38,540.31 × 15,353.31
  4. Step 4: Simplify right side
    27,927.75x = 591,721,326.93
  5. Step 5: Solve for x
    x = 591,721,326.93/27,927.75
  6. Step 6: Final answer
    x = 21,187.58

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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.