Home / 22,617.14-31,211.68-13,187.53

Finding the Fourth Proportional to 22,617.14, 31,211.68 and 13,187.53

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Solution

The fourth proportional to 22,617.14, 31,211.68 and 13,187.53 is: 18,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,617.14 : 31,211.68 = 13,187.53 : x
  2. Step 2: Convert to fraction form
    22,617.14/31,211.68 = 13,187.53/x
  3. Step 3: Cross multiply
    22,617.14x = 31,211.68 × 13,187.53
  4. Step 4: Simplify right side
    22,617.14x = 411,604,821.56
  5. Step 5: Solve for x
    x = 411,604,821.56/22,617.14
  6. Step 6: Final answer
    x = 18,198.80

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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.