Home / 22,106.39-30,497.79-13,605.95

Finding the Fourth Proportional to 22,106.39, 30,497.79 and 13,605.95

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Solution

The fourth proportional to 22,106.39, 30,497.79 and 13,605.95 is: 18,770.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,106.39 : 30,497.79 = 13,605.95 : x
  2. Step 2: Convert to fraction form
    22,106.39/30,497.79 = 13,605.95/x
  3. Step 3: Cross multiply
    22,106.39x = 30,497.79 × 13,605.95
  4. Step 4: Simplify right side
    22,106.39x = 414,951,482.09
  5. Step 5: Solve for x
    x = 414,951,482.09/22,106.39
  6. Step 6: Final answer
    x = 18,770.66

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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.