Home / 21,732.44-29,990.86-12,302.82

Finding the Fourth Proportional to 21,732.44, 29,990.86 and 12,302.82

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Solution

The fourth proportional to 21,732.44, 29,990.86 and 12,302.82 is: 16,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,732.44 : 29,990.86 = 12,302.82 : x
  2. Step 2: Convert to fraction form
    21,732.44/29,990.86 = 12,302.82/x
  3. Step 3: Cross multiply
    21,732.44x = 29,990.86 × 12,302.82
  4. Step 4: Simplify right side
    21,732.44x = 368,972,121.47
  5. Step 5: Solve for x
    x = 368,972,121.47/21,732.44
  6. Step 6: Final answer
    x = 16,977.95

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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.