Home / 27,822.31-38,394.80-15,246.79

Finding the Fourth Proportional to 27,822.31, 38,394.80 and 15,246.79

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Solution

The fourth proportional to 27,822.31, 38,394.80 and 15,246.79 is: 21,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,822.31 : 38,394.80 = 15,246.79 : x
  2. Step 2: Convert to fraction form
    27,822.31/38,394.80 = 15,246.79/x
  3. Step 3: Cross multiply
    27,822.31x = 38,394.80 × 15,246.79
  4. Step 4: Simplify right side
    27,822.31x = 585,397,452.69
  5. Step 5: Solve for x
    x = 585,397,452.69/27,822.31
  6. Step 6: Final answer
    x = 21,040.58

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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.