Home / 27,489.98-37,971.77-20,334.44

Finding the Fourth Proportional to 27,489.98, 37,971.77 and 20,334.44

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Solution

The fourth proportional to 27,489.98, 37,971.77 and 20,334.44 is: 28,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,489.98 : 37,971.77 = 20,334.44 : x
  2. Step 2: Convert to fraction form
    27,489.98/37,971.77 = 20,334.44/x
  3. Step 3: Cross multiply
    27,489.98x = 37,971.77 × 20,334.44
  4. Step 4: Simplify right side
    27,489.98x = 772,134,672.02
  5. Step 5: Solve for x
    x = 772,134,672.02/27,489.98
  6. Step 6: Final answer
    x = 28,087.86

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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.