Home / 37,979.60-56,974.80-11,686.48

Finding the Fourth Proportional to 37,979.60, 56,974.80 and 11,686.48

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Solution

The fourth proportional to 37,979.60, 56,974.80 and 11,686.48 is: 17,531.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,979.60 : 56,974.80 = 11,686.48 : x
  2. Step 2: Convert to fraction form
    37,979.60/56,974.80 = 11,686.48/x
  3. Step 3: Cross multiply
    37,979.60x = 56,974.80 × 11,686.48
  4. Step 4: Simplify right side
    37,979.60x = 665,834,860.70
  5. Step 5: Solve for x
    x = 665,834,860.70/37,979.60
  6. Step 6: Final answer
    x = 17,531.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.