Home / 30,231.11-41,715.75-16,800.20

Finding the Fourth Proportional to 30,231.11, 41,715.75 and 16,800.20

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Solution

The fourth proportional to 30,231.11, 41,715.75 and 16,800.20 is: 23,182.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,231.11 : 41,715.75 = 16,800.20 : x
  2. Step 2: Convert to fraction form
    30,231.11/41,715.75 = 16,800.20/x
  3. Step 3: Cross multiply
    30,231.11x = 41,715.75 × 16,800.20
  4. Step 4: Simplify right side
    30,231.11x = 700,832,734.57
  5. Step 5: Solve for x
    x = 700,832,734.57/30,231.11
  6. Step 6: Final answer
    x = 23,182.50

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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.