Home / 31,878.43-47,817.06-11,101.39

Finding the Fourth Proportional to 31,878.43, 47,817.06 and 11,101.39

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Solution

The fourth proportional to 31,878.43, 47,817.06 and 11,101.39 is: 16,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,878.43 : 47,817.06 = 11,101.39 : x
  2. Step 2: Convert to fraction form
    31,878.43/47,817.06 = 11,101.39/x
  3. Step 3: Cross multiply
    31,878.43x = 47,817.06 × 11,101.39
  4. Step 4: Simplify right side
    31,878.43x = 530,835,831.71
  5. Step 5: Solve for x
    x = 530,835,831.71/31,878.43
  6. Step 6: Final answer
    x = 16,651.88

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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.