Home / 27,915.42-38,522.42-15,977.97

Finding the Fourth Proportional to 27,915.42, 38,522.42 and 15,977.97

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Solution

The fourth proportional to 27,915.42, 38,522.42 and 15,977.97 is: 22,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,915.42 : 38,522.42 = 15,977.97 : x
  2. Step 2: Convert to fraction form
    27,915.42/38,522.42 = 15,977.97/x
  3. Step 3: Cross multiply
    27,915.42x = 38,522.42 × 15,977.97
  4. Step 4: Simplify right side
    27,915.42x = 615,509,991.20
  5. Step 5: Solve for x
    x = 615,509,991.20/27,915.42
  6. Step 6: Final answer
    x = 22,049.10

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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.