Home / 27,811.62-38,378.61-15,236.10

Finding the Fourth Proportional to 27,811.62, 38,378.61 and 15,236.10

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Solution

The fourth proportional to 27,811.62, 38,378.61 and 15,236.10 is: 21,025.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.62 : 38,378.61 = 15,236.10 : x
  2. Step 2: Convert to fraction form
    27,811.62/38,378.61 = 15,236.10/x
  3. Step 3: Cross multiply
    27,811.62x = 38,378.61 × 15,236.10
  4. Step 4: Simplify right side
    27,811.62x = 584,740,339.82
  5. Step 5: Solve for x
    x = 584,740,339.82/27,811.62
  6. Step 6: Final answer
    x = 21,025.04

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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.