Home / 27,619.45-41,397.03-15,781.51

Finding the Fourth Proportional to 27,619.45, 41,397.03 and 15,781.51

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Solution

The fourth proportional to 27,619.45, 41,397.03 and 15,781.51 is: 23,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,619.45 : 41,397.03 = 15,781.51 : x
  2. Step 2: Convert to fraction form
    27,619.45/41,397.03 = 15,781.51/x
  3. Step 3: Cross multiply
    27,619.45x = 41,397.03 × 15,781.51
  4. Step 4: Simplify right side
    27,619.45x = 653,307,642.92
  5. Step 5: Solve for x
    x = 653,307,642.92/27,619.45
  6. Step 6: Final answer
    x = 23,653.90

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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.