Home / 37,981.96-56,979.40-11,686.12

Finding the Fourth Proportional to 37,981.96, 56,979.40 and 11,686.12

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Solution

The fourth proportional to 37,981.96, 56,979.40 and 11,686.12 is: 17,531.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,981.96 : 56,979.40 = 11,686.12 : x
  2. Step 2: Convert to fraction form
    37,981.96/56,979.40 = 11,686.12/x
  3. Step 3: Cross multiply
    37,981.96x = 56,979.40 × 11,686.12
  4. Step 4: Simplify right side
    37,981.96x = 665,868,105.93
  5. Step 5: Solve for x
    x = 665,868,105.93/37,981.96
  6. Step 6: Final answer
    x = 17,531.17

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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.