Home / 19,657.22-27,129.13-12,102.04

Finding the Fourth Proportional to 19,657.22, 27,129.13 and 12,102.04

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Solution

The fourth proportional to 19,657.22, 27,129.13 and 12,102.04 is: 16,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.22 : 27,129.13 = 12,102.04 : x
  2. Step 2: Convert to fraction form
    19,657.22/27,129.13 = 12,102.04/x
  3. Step 3: Cross multiply
    19,657.22x = 27,129.13 × 12,102.04
  4. Step 4: Simplify right side
    19,657.22x = 328,317,755.92
  5. Step 5: Solve for x
    x = 328,317,755.92/19,657.22
  6. Step 6: Final answer
    x = 16,702.15

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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.