Home / 34,395.81-47,474.66-20,974.46

Finding the Fourth Proportional to 34,395.81, 47,474.66 and 20,974.46

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Solution

The fourth proportional to 34,395.81, 47,474.66 and 20,974.46 is: 28,949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,395.81 : 47,474.66 = 20,974.46 : x
  2. Step 2: Convert to fraction form
    34,395.81/47,474.66 = 20,974.46/x
  3. Step 3: Cross multiply
    34,395.81x = 47,474.66 × 20,974.46
  4. Step 4: Simplify right side
    34,395.81x = 995,755,014.94
  5. Step 5: Solve for x
    x = 995,755,014.94/34,395.81
  6. Step 6: Final answer
    x = 28,949.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.