Home / 22,021.18-30,398.70-13,524.69

Finding the Fourth Proportional to 22,021.18, 30,398.70 and 13,524.69

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Solution

The fourth proportional to 22,021.18, 30,398.70 and 13,524.69 is: 18,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.18 : 30,398.70 = 13,524.69 : x
  2. Step 2: Convert to fraction form
    22,021.18/30,398.70 = 13,524.69/x
  3. Step 3: Cross multiply
    22,021.18x = 30,398.70 × 13,524.69
  4. Step 4: Simplify right side
    22,021.18x = 411,132,993.90
  5. Step 5: Solve for x
    x = 411,132,993.90/22,021.18
  6. Step 6: Final answer
    x = 18,669.89

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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.