Home / 31,928.40-47,914.32-11,151.84

Finding the Fourth Proportional to 31,928.40, 47,914.32 and 11,151.84

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Solution

The fourth proportional to 31,928.40, 47,914.32 and 11,151.84 is: 16,735.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,928.40 : 47,914.32 = 11,151.84 : x
  2. Step 2: Convert to fraction form
    31,928.40/47,914.32 = 11,151.84/x
  3. Step 3: Cross multiply
    31,928.40x = 47,914.32 × 11,151.84
  4. Step 4: Simplify right side
    31,928.40x = 534,332,830.35
  5. Step 5: Solve for x
    x = 534,332,830.35/31,928.40
  6. Step 6: Final answer
    x = 16,735.35

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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.