Home / 21,192.44-29,245.32-12,239.91

Finding the Fourth Proportional to 21,192.44, 29,245.32 and 12,239.91

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Solution

The fourth proportional to 21,192.44, 29,245.32 and 12,239.91 is: 16,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.44 : 29,245.32 = 12,239.91 : x
  2. Step 2: Convert to fraction form
    21,192.44/29,245.32 = 12,239.91/x
  3. Step 3: Cross multiply
    21,192.44x = 29,245.32 × 12,239.91
  4. Step 4: Simplify right side
    21,192.44x = 357,960,084.72
  5. Step 5: Solve for x
    x = 357,960,084.72/21,192.44
  6. Step 6: Final answer
    x = 16,890.94

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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.