Home / 21,942.18-30,282.96-16,902.36

Finding the Fourth Proportional to 21,942.18, 30,282.96 and 16,902.36

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Solution

The fourth proportional to 21,942.18, 30,282.96 and 16,902.36 is: 23,327.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942.18 : 30,282.96 = 16,902.36 : x
  2. Step 2: Convert to fraction form
    21,942.18/30,282.96 = 16,902.36/x
  3. Step 3: Cross multiply
    21,942.18x = 30,282.96 × 16,902.36
  4. Step 4: Simplify right side
    21,942.18x = 511,853,491.79
  5. Step 5: Solve for x
    x = 511,853,491.79/21,942.18
  6. Step 6: Final answer
    x = 23,327.38

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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.