Home / 27,841.72-38,458.38-20,755.84

Finding the Fourth Proportional to 27,841.72, 38,458.38 and 20,755.84

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Solution

The fourth proportional to 27,841.72, 38,458.38 and 20,755.84 is: 28,670.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,841.72 : 38,458.38 = 20,755.84 : x
  2. Step 2: Convert to fraction form
    27,841.72/38,458.38 = 20,755.84/x
  3. Step 3: Cross multiply
    27,841.72x = 38,458.38 × 20,755.84
  4. Step 4: Simplify right side
    27,841.72x = 798,235,981.94
  5. Step 5: Solve for x
    x = 798,235,981.94/27,841.72
  6. Step 6: Final answer
    x = 28,670.50

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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.