Home / 20,225.69-27,912.40-11,273.25

Finding the Fourth Proportional to 20,225.69, 27,912.40 and 11,273.25

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Solution

The fourth proportional to 20,225.69, 27,912.40 and 11,273.25 is: 15,557.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.69 : 27,912.40 = 11,273.25 : x
  2. Step 2: Convert to fraction form
    20,225.69/27,912.40 = 11,273.25/x
  3. Step 3: Cross multiply
    20,225.69x = 27,912.40 × 11,273.25
  4. Step 4: Simplify right side
    20,225.69x = 314,663,463.30
  5. Step 5: Solve for x
    x = 314,663,463.30/20,225.69
  6. Step 6: Final answer
    x = 15,557.61

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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.