Home / 20,225.61-27,912.21-11,273.11

Finding the Fourth Proportional to 20,225.61, 27,912.21 and 11,273.11

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Solution

The fourth proportional to 20,225.61, 27,912.21 and 11,273.11 is: 15,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.61 : 27,912.21 = 11,273.11 : x
  2. Step 2: Convert to fraction form
    20,225.61/27,912.21 = 11,273.11/x
  3. Step 3: Cross multiply
    20,225.61x = 27,912.21 × 11,273.11
  4. Step 4: Simplify right side
    20,225.61x = 314,657,413.67
  5. Step 5: Solve for x
    x = 314,657,413.67/20,225.61
  6. Step 6: Final answer
    x = 15,557.38

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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.