Home / 22,028.87-30,415.63-13,542.36

Finding the Fourth Proportional to 22,028.87, 30,415.63 and 13,542.36

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Solution

The fourth proportional to 22,028.87, 30,415.63 and 13,542.36 is: 18,698.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,028.87 : 30,415.63 = 13,542.36 : x
  2. Step 2: Convert to fraction form
    22,028.87/30,415.63 = 13,542.36/x
  3. Step 3: Cross multiply
    22,028.87x = 30,415.63 × 13,542.36
  4. Step 4: Simplify right side
    22,028.87x = 411,899,542.07
  5. Step 5: Solve for x
    x = 411,899,542.07/22,028.87
  6. Step 6: Final answer
    x = 18,698.17

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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.