Home / 23,658.20-35,490.70-7,857.86

Finding the Fourth Proportional to 23,658.20, 35,490.70 and 7,857.86

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Solution

The fourth proportional to 23,658.20, 35,490.70 and 7,857.86 is: 11,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,658.20 : 35,490.70 = 7,857.86 : x
  2. Step 2: Convert to fraction form
    23,658.20/35,490.70 = 7,857.86/x
  3. Step 3: Cross multiply
    23,658.20x = 35,490.70 × 7,857.86
  4. Step 4: Simplify right side
    23,658.20x = 278,880,951.90
  5. Step 5: Solve for x
    x = 278,880,951.90/23,658.20
  6. Step 6: Final answer
    x = 11,787.92

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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.