Home / 22,018.68-30,385.44-11,947.14

Finding the Fourth Proportional to 22,018.68, 30,385.44 and 11,947.14

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Solution

The fourth proportional to 22,018.68, 30,385.44 and 11,947.14 is: 16,486.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,018.68 : 30,385.44 = 11,947.14 : x
  2. Step 2: Convert to fraction form
    22,018.68/30,385.44 = 11,947.14/x
  3. Step 3: Cross multiply
    22,018.68x = 30,385.44 × 11,947.14
  4. Step 4: Simplify right side
    22,018.68x = 363,019,105.64
  5. Step 5: Solve for x
    x = 363,019,105.64/22,018.68
  6. Step 6: Final answer
    x = 16,486.87

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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.