Home / 20,212.19-30,292.97-10,828.95

Finding the Fourth Proportional to 20,212.19, 30,292.97 and 10,828.95

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Solution

The fourth proportional to 20,212.19, 30,292.97 and 10,828.95 is: 16,229.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.19 : 30,292.97 = 10,828.95 : x
  2. Step 2: Convert to fraction form
    20,212.19/30,292.97 = 10,828.95/x
  3. Step 3: Cross multiply
    20,212.19x = 30,292.97 × 10,828.95
  4. Step 4: Simplify right side
    20,212.19x = 328,041,057.48
  5. Step 5: Solve for x
    x = 328,041,057.48/20,212.19
  6. Step 6: Final answer
    x = 16,229.86

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1.5x scale

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.