Home / 27,912.95-38,517.62-15,973.55

Finding the Fourth Proportional to 27,912.95, 38,517.62 and 15,973.55

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Solution

The fourth proportional to 27,912.95, 38,517.62 and 15,973.55 is: 22,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912.95 : 38,517.62 = 15,973.55 : x
  2. Step 2: Convert to fraction form
    27,912.95/38,517.62 = 15,973.55/x
  3. Step 3: Cross multiply
    27,912.95x = 38,517.62 × 15,973.55
  4. Step 4: Simplify right side
    27,912.95x = 615,262,936.36
  5. Step 5: Solve for x
    x = 615,262,936.36/27,912.95
  6. Step 6: Final answer
    x = 22,042.21

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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.