Home / 21,169.86-31,754.94-17,216.52

Finding the Fourth Proportional to 21,169.86, 31,754.94 and 17,216.52

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Solution

The fourth proportional to 21,169.86, 31,754.94 and 17,216.52 is: 25,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169.86 : 31,754.94 = 17,216.52 : x
  2. Step 2: Convert to fraction form
    21,169.86/31,754.94 = 17,216.52/x
  3. Step 3: Cross multiply
    21,169.86x = 31,754.94 × 17,216.52
  4. Step 4: Simplify right side
    21,169.86x = 546,709,559.61
  5. Step 5: Solve for x
    x = 546,709,559.61/21,169.86
  6. Step 6: Final answer
    x = 25,824.90

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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.