Home / 22,206.89-30,645.95-12,135.95

Finding the Fourth Proportional to 22,206.89, 30,645.95 and 12,135.95

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Solution

The fourth proportional to 22,206.89, 30,645.95 and 12,135.95 is: 16,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,206.89 : 30,645.95 = 12,135.95 : x
  2. Step 2: Convert to fraction form
    22,206.89/30,645.95 = 12,135.95/x
  3. Step 3: Cross multiply
    22,206.89x = 30,645.95 × 12,135.95
  4. Step 4: Simplify right side
    22,206.89x = 371,917,732.84
  5. Step 5: Solve for x
    x = 371,917,732.84/22,206.89
  6. Step 6: Final answer
    x = 16,747.85

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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.