Home / 21,474.09-29,634.19-12,042.86

Finding the Fourth Proportional to 21,474.09, 29,634.19 and 12,042.86

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Solution

The fourth proportional to 21,474.09, 29,634.19 and 12,042.86 is: 16,619.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.09 : 29,634.19 = 12,042.86 : x
  2. Step 2: Convert to fraction form
    21,474.09/29,634.19 = 12,042.86/x
  3. Step 3: Cross multiply
    21,474.09x = 29,634.19 × 12,042.86
  4. Step 4: Simplify right side
    21,474.09x = 356,880,223.11
  5. Step 5: Solve for x
    x = 356,880,223.11/21,474.09
  6. Step 6: Final answer
    x = 16,619.11

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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.