Home / 22,161.33-30,579.89-13,551.84

Finding the Fourth Proportional to 22,161.33, 30,579.89 and 13,551.84

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Solution

The fourth proportional to 22,161.33, 30,579.89 and 13,551.84 is: 18,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.33 : 30,579.89 = 13,551.84 : x
  2. Step 2: Convert to fraction form
    22,161.33/30,579.89 = 13,551.84/x
  3. Step 3: Cross multiply
    22,161.33x = 30,579.89 × 13,551.84
  4. Step 4: Simplify right side
    22,161.33x = 414,413,776.50
  5. Step 5: Solve for x
    x = 414,413,776.50/22,161.33
  6. Step 6: Final answer
    x = 18,699.86

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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.