Home / 27,344.61-37,716.71-20,987.73

Finding the Fourth Proportional to 27,344.61, 37,716.71 and 20,987.73

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Solution

The fourth proportional to 27,344.61, 37,716.71 and 20,987.73 is: 28,948.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,344.61 : 37,716.71 = 20,987.73 : x
  2. Step 2: Convert to fraction form
    27,344.61/37,716.71 = 20,987.73/x
  3. Step 3: Cross multiply
    27,344.61x = 37,716.71 × 20,987.73
  4. Step 4: Simplify right side
    27,344.61x = 791,588,021.03
  5. Step 5: Solve for x
    x = 791,588,021.03/27,344.61
  6. Step 6: Final answer
    x = 28,948.59

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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.