Home / 30,111.87-41,552.78-16,682.81

Finding the Fourth Proportional to 30,111.87, 41,552.78 and 16,682.81

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Solution

The fourth proportional to 30,111.87, 41,552.78 and 16,682.81 is: 23,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.87 : 41,552.78 = 16,682.81 : x
  2. Step 2: Convert to fraction form
    30,111.87/41,552.78 = 16,682.81/x
  3. Step 3: Cross multiply
    30,111.87x = 41,552.78 × 16,682.81
  4. Step 4: Simplify right side
    30,111.87x = 693,217,279.30
  5. Step 5: Solve for x
    x = 693,217,279.30/30,111.87
  6. Step 6: Final answer
    x = 23,021.40

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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.