Home / 27,915.03-38,522.79-15,168.09

Finding the Fourth Proportional to 27,915.03, 38,522.79 and 15,168.09

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Solution

The fourth proportional to 27,915.03, 38,522.79 and 15,168.09 is: 20,932.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,915.03 : 38,522.79 = 15,168.09 : x
  2. Step 2: Convert to fraction form
    27,915.03/38,522.79 = 15,168.09/x
  3. Step 3: Cross multiply
    27,915.03x = 38,522.79 × 15,168.09
  4. Step 4: Simplify right side
    27,915.03x = 584,317,290.23
  5. Step 5: Solve for x
    x = 584,317,290.23/27,915.03
  6. Step 6: Final answer
    x = 20,932.00

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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.