Home / 25,845.21-38,743.18-8,302.72

Finding the Fourth Proportional to 25,845.21, 38,743.18 and 8,302.72

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Solution

The fourth proportional to 25,845.21, 38,743.18 and 8,302.72 is: 12,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,845.21 : 38,743.18 = 8,302.72 : x
  2. Step 2: Convert to fraction form
    25,845.21/38,743.18 = 8,302.72/x
  3. Step 3: Cross multiply
    25,845.21x = 38,743.18 × 8,302.72
  4. Step 4: Simplify right side
    25,845.21x = 321,673,775.45
  5. Step 5: Solve for x
    x = 321,673,775.45/25,845.21
  6. Step 6: Final answer
    x = 12,446.17

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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.