Home / 31,821.84-47,701.62-17,788.68

Finding the Fourth Proportional to 31,821.84, 47,701.62 and 17,788.68

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Solution

The fourth proportional to 31,821.84, 47,701.62 and 17,788.68 is: 26,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.84 : 47,701.62 = 17,788.68 : x
  2. Step 2: Convert to fraction form
    31,821.84/47,701.62 = 17,788.68/x
  3. Step 3: Cross multiply
    31,821.84x = 47,701.62 × 17,788.68
  4. Step 4: Simplify right side
    31,821.84x = 848,548,853.66
  5. Step 5: Solve for x
    x = 848,548,853.66/31,821.84
  6. Step 6: Final answer
    x = 26,665.61

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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.