Home / 22,682.71-31,284.78-20,133.13

Finding the Fourth Proportional to 22,682.71, 31,284.78 and 20,133.13

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Solution

The fourth proportional to 22,682.71, 31,284.78 and 20,133.13 is: 27,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,682.71 : 31,284.78 = 20,133.13 : x
  2. Step 2: Convert to fraction form
    22,682.71/31,284.78 = 20,133.13/x
  3. Step 3: Cross multiply
    22,682.71x = 31,284.78 × 20,133.13
  4. Step 4: Simplify right side
    22,682.71x = 629,860,542.76
  5. Step 5: Solve for x
    x = 629,860,542.76/22,682.71
  6. Step 6: Final answer
    x = 27,768.31

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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.