Home / 30,147.11-41,605.49-16,722.70

Finding the Fourth Proportional to 30,147.11, 41,605.49 and 16,722.70

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Solution

The fourth proportional to 30,147.11, 41,605.49 and 16,722.70 is: 23,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147.11 : 41,605.49 = 16,722.70 : x
  2. Step 2: Convert to fraction form
    30,147.11/41,605.49 = 16,722.70/x
  3. Step 3: Cross multiply
    30,147.11x = 41,605.49 × 16,722.70
  4. Step 4: Simplify right side
    30,147.11x = 695,756,065.42
  5. Step 5: Solve for x
    x = 695,756,065.42/30,147.11
  6. Step 6: Final answer
    x = 23,078.70

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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.