Home / 22,939.99-31,651.14-13,247.07

Finding the Fourth Proportional to 22,939.99, 31,651.14 and 13,247.07

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Solution

The fourth proportional to 22,939.99, 31,651.14 and 13,247.07 is: 18,277.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939.99 : 31,651.14 = 13,247.07 : x
  2. Step 2: Convert to fraction form
    22,939.99/31,651.14 = 13,247.07/x
  3. Step 3: Cross multiply
    22,939.99x = 31,651.14 × 13,247.07
  4. Step 4: Simplify right side
    22,939.99x = 419,284,867.16
  5. Step 5: Solve for x
    x = 419,284,867.16/22,939.99
  6. Step 6: Final answer
    x = 18,277.47

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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.