Home / 21,253.84-31,845.26-15,003.60

Finding the Fourth Proportional to 21,253.84, 31,845.26 and 15,003.60

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Solution

The fourth proportional to 21,253.84, 31,845.26 and 15,003.60 is: 22,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.84 : 31,845.26 = 15,003.60 : x
  2. Step 2: Convert to fraction form
    21,253.84/31,845.26 = 15,003.60/x
  3. Step 3: Cross multiply
    21,253.84x = 31,845.26 × 15,003.60
  4. Step 4: Simplify right side
    21,253.84x = 477,793,542.94
  5. Step 5: Solve for x
    x = 477,793,542.94/21,253.84
  6. Step 6: Final answer
    x = 22,480.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.