Home / 21,998.39-30,357.79-11,926.85

Finding the Fourth Proportional to 21,998.39, 30,357.79 and 11,926.85

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Solution

The fourth proportional to 21,998.39, 30,357.79 and 11,926.85 is: 16,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.39 : 30,357.79 = 11,926.85 : x
  2. Step 2: Convert to fraction form
    21,998.39/30,357.79 = 11,926.85/x
  3. Step 3: Cross multiply
    21,998.39x = 30,357.79 × 11,926.85
  4. Step 4: Simplify right side
    21,998.39x = 362,072,626.06
  5. Step 5: Solve for x
    x = 362,072,626.06/21,998.39
  6. Step 6: Final answer
    x = 16,459.05

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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.