Home / 31,845.80-47,768.70-11,069.30

Finding the Fourth Proportional to 31,845.80, 47,768.70 and 11,069.30

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Solution

The fourth proportional to 31,845.80, 47,768.70 and 11,069.30 is: 16,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,845.80 : 47,768.70 = 11,069.30 : x
  2. Step 2: Convert to fraction form
    31,845.80/47,768.70 = 11,069.30/x
  3. Step 3: Cross multiply
    31,845.80x = 47,768.70 × 11,069.30
  4. Step 4: Simplify right side
    31,845.80x = 528,766,070.91
  5. Step 5: Solve for x
    x = 528,766,070.91/31,845.80
  6. Step 6: Final answer
    x = 16,603.95

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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.