Home / 31,816.87-47,723.78-10,755.45

Finding the Fourth Proportional to 31,816.87, 47,723.78 and 10,755.45

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Solution

The fourth proportional to 31,816.87, 47,723.78 and 10,755.45 is: 16,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,816.87 : 47,723.78 = 10,755.45 : x
  2. Step 2: Convert to fraction form
    31,816.87/47,723.78 = 10,755.45/x
  3. Step 3: Cross multiply
    31,816.87x = 47,723.78 × 10,755.45
  4. Step 4: Simplify right side
    31,816.87x = 513,290,756.49
  5. Step 5: Solve for x
    x = 513,290,756.49/31,816.87
  6. Step 6: Final answer
    x = 16,132.66

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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.