Home / 22,939.29-34,418.66-12,538.89

Finding the Fourth Proportional to 22,939.29, 34,418.66 and 12,538.89

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Solution

The fourth proportional to 22,939.29, 34,418.66 and 12,538.89 is: 18,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939.29 : 34,418.66 = 12,538.89 : x
  2. Step 2: Convert to fraction form
    22,939.29/34,418.66 = 12,538.89/x
  3. Step 3: Cross multiply
    22,939.29x = 34,418.66 × 12,538.89
  4. Step 4: Simplify right side
    22,939.29x = 431,571,728.99
  5. Step 5: Solve for x
    x = 431,571,728.99/22,939.29
  6. Step 6: Final answer
    x = 18,813.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.