Home / 31,888-47,834.70-11,902.96

Finding the Fourth Proportional to 31,888, 47,834.70 and 11,902.96

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Solution

The fourth proportional to 31,888, 47,834.70 and 11,902.96 is: 17,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,888 : 47,834.70 = 11,902.96 : x
  2. Step 2: Convert to fraction form
    31,888/47,834.70 = 11,902.96/x
  3. Step 3: Cross multiply
    31,888x = 47,834.70 × 11,902.96
  4. Step 4: Simplify right side
    31,888x = 569,374,520.71
  5. Step 5: Solve for x
    x = 569,374,520.71/31,888
  6. Step 6: Final answer
    x = 17,855.45

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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.