Home / 19,972.80-27,562.80-12,013.48

Finding the Fourth Proportional to 19,972.80, 27,562.80 and 12,013.48

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Solution

The fourth proportional to 19,972.80, 27,562.80 and 12,013.48 is: 16,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.80 : 27,562.80 = 12,013.48 : x
  2. Step 2: Convert to fraction form
    19,972.80/27,562.80 = 12,013.48/x
  3. Step 3: Cross multiply
    19,972.80x = 27,562.80 × 12,013.48
  4. Step 4: Simplify right side
    19,972.80x = 331,125,146.54
  5. Step 5: Solve for x
    x = 331,125,146.54/19,972.80
  6. Step 6: Final answer
    x = 16,578.80

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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.