Home / 27,911.54-38,517.86-15,975.12

Finding the Fourth Proportional to 27,911.54, 38,517.86 and 15,975.12

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Solution

The fourth proportional to 27,911.54, 38,517.86 and 15,975.12 is: 22,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.54 : 38,517.86 = 15,975.12 : x
  2. Step 2: Convert to fraction form
    27,911.54/38,517.86 = 15,975.12/x
  3. Step 3: Cross multiply
    27,911.54x = 38,517.86 × 15,975.12
  4. Step 4: Simplify right side
    27,911.54x = 615,327,435.64
  5. Step 5: Solve for x
    x = 615,327,435.64/27,911.54
  6. Step 6: Final answer
    x = 22,045.63

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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.