Home / 27,931.54-38,546.16-15,185.44

Finding the Fourth Proportional to 27,931.54, 38,546.16 and 15,185.44

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Solution

The fourth proportional to 27,931.54, 38,546.16 and 15,185.44 is: 20,956.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,931.54 : 38,546.16 = 15,185.44 : x
  2. Step 2: Convert to fraction form
    27,931.54/38,546.16 = 15,185.44/x
  3. Step 3: Cross multiply
    27,931.54x = 38,546.16 × 15,185.44
  4. Step 4: Simplify right side
    27,931.54x = 585,340,399.91
  5. Step 5: Solve for x
    x = 585,340,399.91/27,931.54
  6. Step 6: Final answer
    x = 20,956.25

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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.