Home / 21,014.73-28,999.91-11,583.29

Finding the Fourth Proportional to 21,014.73, 28,999.91 and 11,583.29

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Solution

The fourth proportional to 21,014.73, 28,999.91 and 11,583.29 is: 15,984.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.73 : 28,999.91 = 11,583.29 : x
  2. Step 2: Convert to fraction form
    21,014.73/28,999.91 = 11,583.29/x
  3. Step 3: Cross multiply
    21,014.73x = 28,999.91 × 11,583.29
  4. Step 4: Simplify right side
    21,014.73x = 335,914,468.96
  5. Step 5: Solve for x
    x = 335,914,468.96/21,014.73
  6. Step 6: Final answer
    x = 15,984.71

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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.