Home / 21,803.44-30,087.84-12,372.52

Finding the Fourth Proportional to 21,803.44, 30,087.84 and 12,372.52

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Solution

The fourth proportional to 21,803.44, 30,087.84 and 12,372.52 is: 17,073.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803.44 : 30,087.84 = 12,372.52 : x
  2. Step 2: Convert to fraction form
    21,803.44/30,087.84 = 12,372.52/x
  3. Step 3: Cross multiply
    21,803.44x = 30,087.84 × 12,372.52
  4. Step 4: Simplify right side
    21,803.44x = 372,262,402.16
  5. Step 5: Solve for x
    x = 372,262,402.16/21,803.44
  6. Step 6: Final answer
    x = 17,073.56

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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.