Home / 27,448.61-37,878.71-15,515.82

Finding the Fourth Proportional to 27,448.61, 37,878.71 and 15,515.82

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Solution

The fourth proportional to 27,448.61, 37,878.71 and 15,515.82 is: 21,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,448.61 : 37,878.71 = 15,515.82 : x
  2. Step 2: Convert to fraction form
    27,448.61/37,878.71 = 15,515.82/x
  3. Step 3: Cross multiply
    27,448.61x = 37,878.71 × 15,515.82
  4. Step 4: Simplify right side
    27,448.61x = 587,719,168.61
  5. Step 5: Solve for x
    x = 587,719,168.61/27,448.61
  6. Step 6: Final answer
    x = 21,411.62

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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.