Home / 19,881.84-27,425.98-12,600.61

Finding the Fourth Proportional to 19,881.84, 27,425.98 and 12,600.61

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Solution

The fourth proportional to 19,881.84, 27,425.98 and 12,600.61 is: 17,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.84 : 27,425.98 = 12,600.61 : x
  2. Step 2: Convert to fraction form
    19,881.84/27,425.98 = 12,600.61/x
  3. Step 3: Cross multiply
    19,881.84x = 27,425.98 × 12,600.61
  4. Step 4: Simplify right side
    19,881.84x = 345,584,060.47
  5. Step 5: Solve for x
    x = 345,584,060.47/19,881.84
  6. Step 6: Final answer
    x = 17,381.90

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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.