Home / 27,906.32-38,517.78-15,973.40

Finding the Fourth Proportional to 27,906.32, 38,517.78 and 15,973.40

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Solution

The fourth proportional to 27,906.32, 38,517.78 and 15,973.40 is: 22,047.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.32 : 38,517.78 = 15,973.40 : x
  2. Step 2: Convert to fraction form
    27,906.32/38,517.78 = 15,973.40/x
  3. Step 3: Cross multiply
    27,906.32x = 38,517.78 × 15,973.40
  4. Step 4: Simplify right side
    27,906.32x = 615,259,907.05
  5. Step 5: Solve for x
    x = 615,259,907.05/27,906.32
  6. Step 6: Final answer
    x = 22,047.33

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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.