Home / 25,891.72-38,803.86-18,799.76

Finding the Fourth Proportional to 25,891.72, 38,803.86 and 18,799.76

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Solution

The fourth proportional to 25,891.72, 38,803.86 and 18,799.76 is: 28,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,891.72 : 38,803.86 = 18,799.76 : x
  2. Step 2: Convert to fraction form
    25,891.72/38,803.86 = 18,799.76/x
  3. Step 3: Cross multiply
    25,891.72x = 38,803.86 × 18,799.76
  4. Step 4: Simplify right side
    25,891.72x = 729,503,352.08
  5. Step 5: Solve for x
    x = 729,503,352.08/25,891.72
  6. Step 6: Final answer
    x = 28,175.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.