Home / 31,727.73-47,558.10-10,647.78

Finding the Fourth Proportional to 31,727.73, 47,558.10 and 10,647.78

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Solution

The fourth proportional to 31,727.73, 47,558.10 and 10,647.78 is: 15,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,727.73 : 47,558.10 = 10,647.78 : x
  2. Step 2: Convert to fraction form
    31,727.73/47,558.10 = 10,647.78/x
  3. Step 3: Cross multiply
    31,727.73x = 47,558.10 × 10,647.78
  4. Step 4: Simplify right side
    31,727.73x = 506,387,894.99
  5. Step 5: Solve for x
    x = 506,387,894.99/31,727.73
  6. Step 6: Final answer
    x = 15,960.42

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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.