Home / 21,625.92-29,840.40-12,194.28

Finding the Fourth Proportional to 21,625.92, 29,840.40 and 12,194.28

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Solution

The fourth proportional to 21,625.92, 29,840.40 and 12,194.28 is: 16,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.92 : 29,840.40 = 12,194.28 : x
  2. Step 2: Convert to fraction form
    21,625.92/29,840.40 = 12,194.28/x
  3. Step 3: Cross multiply
    21,625.92x = 29,840.40 × 12,194.28
  4. Step 4: Simplify right side
    21,625.92x = 363,882,192.91
  5. Step 5: Solve for x
    x = 363,882,192.91/21,625.92
  6. Step 6: Final answer
    x = 16,826.21

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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.