Home / 22,081.83-30,462.21-13,122.99

Finding the Fourth Proportional to 22,081.83, 30,462.21 and 13,122.99

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Solution

The fourth proportional to 22,081.83, 30,462.21 and 13,122.99 is: 18,103.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,081.83 : 30,462.21 = 13,122.99 : x
  2. Step 2: Convert to fraction form
    22,081.83/30,462.21 = 13,122.99/x
  3. Step 3: Cross multiply
    22,081.83x = 30,462.21 × 13,122.99
  4. Step 4: Simplify right side
    22,081.83x = 399,755,277.21
  5. Step 5: Solve for x
    x = 399,755,277.21/22,081.83
  6. Step 6: Final answer
    x = 18,103.36

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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.