Home / 21,405.68-29,549.94-16,102.52

Finding the Fourth Proportional to 21,405.68, 29,549.94 and 16,102.52

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Solution

The fourth proportional to 21,405.68, 29,549.94 and 16,102.52 is: 22,229.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.68 : 29,549.94 = 16,102.52 : x
  2. Step 2: Convert to fraction form
    21,405.68/29,549.94 = 16,102.52/x
  3. Step 3: Cross multiply
    21,405.68x = 29,549.94 × 16,102.52
  4. Step 4: Simplify right side
    21,405.68x = 475,828,499.85
  5. Step 5: Solve for x
    x = 475,828,499.85/21,405.68
  6. Step 6: Final answer
    x = 22,229.08

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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.