Home / 25,942.91-38,865.14-15,390.64

Finding the Fourth Proportional to 25,942.91, 38,865.14 and 15,390.64

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Solution

The fourth proportional to 25,942.91, 38,865.14 and 15,390.64 is: 23,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,942.91 : 38,865.14 = 15,390.64 : x
  2. Step 2: Convert to fraction form
    25,942.91/38,865.14 = 15,390.64/x
  3. Step 3: Cross multiply
    25,942.91x = 38,865.14 × 15,390.64
  4. Step 4: Simplify right side
    25,942.91x = 598,159,378.29
  5. Step 5: Solve for x
    x = 598,159,378.29/25,942.91
  6. Step 6: Final answer
    x = 23,056.76

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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.