Home / 21,932.70-30,266.82-12,501.42

Finding the Fourth Proportional to 21,932.70, 30,266.82 and 12,501.42

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Solution

The fourth proportional to 21,932.70, 30,266.82 and 12,501.42 is: 17,251.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.70 : 30,266.82 = 12,501.42 : x
  2. Step 2: Convert to fraction form
    21,932.70/30,266.82 = 12,501.42/x
  3. Step 3: Cross multiply
    21,932.70x = 30,266.82 × 12,501.42
  4. Step 4: Simplify right side
    21,932.70x = 378,378,228.88
  5. Step 5: Solve for x
    x = 378,378,228.88/21,932.70
  6. Step 6: Final answer
    x = 17,251.79

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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.