Home / 22,210.65-30,651.09-13,256.43

Finding the Fourth Proportional to 22,210.65, 30,651.09 and 13,256.43

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Solution

The fourth proportional to 22,210.65, 30,651.09 and 13,256.43 is: 18,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.65 : 30,651.09 = 13,256.43 : x
  2. Step 2: Convert to fraction form
    22,210.65/30,651.09 = 13,256.43/x
  3. Step 3: Cross multiply
    22,210.65x = 30,651.09 × 13,256.43
  4. Step 4: Simplify right side
    22,210.65x = 406,324,029.01
  5. Step 5: Solve for x
    x = 406,324,029.01/22,210.65
  6. Step 6: Final answer
    x = 18,294.11

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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.