Home / 27,591.40-38,074.18-15,015.88

Finding the Fourth Proportional to 27,591.40, 38,074.18 and 15,015.88

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Solution

The fourth proportional to 27,591.40, 38,074.18 and 15,015.88 is: 20,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,591.40 : 38,074.18 = 15,015.88 : x
  2. Step 2: Convert to fraction form
    27,591.40/38,074.18 = 15,015.88/x
  3. Step 3: Cross multiply
    27,591.40x = 38,074.18 × 15,015.88
  4. Step 4: Simplify right side
    27,591.40x = 571,717,317.98
  5. Step 5: Solve for x
    x = 571,717,317.98/27,591.40
  6. Step 6: Final answer
    x = 20,720.85

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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.