Home / 31,848.68-47,772.88-8,156.18

Finding the Fourth Proportional to 31,848.68, 47,772.88 and 8,156.18

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Solution

The fourth proportional to 31,848.68, 47,772.88 and 8,156.18 is: 12,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,848.68 : 47,772.88 = 8,156.18 : x
  2. Step 2: Convert to fraction form
    31,848.68/47,772.88 = 8,156.18/x
  3. Step 3: Cross multiply
    31,848.68x = 47,772.88 × 8,156.18
  4. Step 4: Simplify right side
    31,848.68x = 389,643,949.14
  5. Step 5: Solve for x
    x = 389,643,949.14/31,848.68
  6. Step 6: Final answer
    x = 12,234.23

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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.