Home / 31,983.84-47,976.06-12,257.70

Finding the Fourth Proportional to 31,983.84, 47,976.06 and 12,257.70

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Solution

The fourth proportional to 31,983.84, 47,976.06 and 12,257.70 is: 18,386.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,983.84 : 47,976.06 = 12,257.70 : x
  2. Step 2: Convert to fraction form
    31,983.84/47,976.06 = 12,257.70/x
  3. Step 3: Cross multiply
    31,983.84x = 47,976.06 × 12,257.70
  4. Step 4: Simplify right side
    31,983.84x = 588,076,150.66
  5. Step 5: Solve for x
    x = 588,076,150.66/31,983.84
  6. Step 6: Final answer
    x = 18,386.66

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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.