Home / 22,272.66-30,724.62-13,772.07

Finding the Fourth Proportional to 22,272.66, 30,724.62 and 13,772.07

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Solution

The fourth proportional to 22,272.66, 30,724.62 and 13,772.07 is: 18,998.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.66 : 30,724.62 = 13,772.07 : x
  2. Step 2: Convert to fraction form
    22,272.66/30,724.62 = 13,772.07/x
  3. Step 3: Cross multiply
    22,272.66x = 30,724.62 × 13,772.07
  4. Step 4: Simplify right side
    22,272.66x = 423,141,595.51
  5. Step 5: Solve for x
    x = 423,141,595.51/22,272.66
  6. Step 6: Final answer
    x = 18,998.25

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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.