Home / 22,628.30-31,226.45-13,196.25

Finding the Fourth Proportional to 22,628.30, 31,226.45 and 13,196.25

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Solution

The fourth proportional to 22,628.30, 31,226.45 and 13,196.25 is: 18,210.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,628.30 : 31,226.45 = 13,196.25 : x
  2. Step 2: Convert to fraction form
    22,628.30/31,226.45 = 13,196.25/x
  3. Step 3: Cross multiply
    22,628.30x = 31,226.45 × 13,196.25
  4. Step 4: Simplify right side
    22,628.30x = 412,071,974.83
  5. Step 5: Solve for x
    x = 412,071,974.83/22,628.30
  6. Step 6: Final answer
    x = 18,210.47

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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.