Home / 22,199.67-30,633.80-12,768.84

Finding the Fourth Proportional to 22,199.67, 30,633.80 and 12,768.84

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Solution

The fourth proportional to 22,199.67, 30,633.80 and 12,768.84 is: 17,619.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,199.67 : 30,633.80 = 12,768.84 : x
  2. Step 2: Convert to fraction form
    22,199.67/30,633.80 = 12,768.84/x
  3. Step 3: Cross multiply
    22,199.67x = 30,633.80 × 12,768.84
  4. Step 4: Simplify right side
    22,199.67x = 391,158,026.95
  5. Step 5: Solve for x
    x = 391,158,026.95/22,199.67
  6. Step 6: Final answer
    x = 17,619.99

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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.