Home / 27,181.98-40,720.86-20,932.56

Finding the Fourth Proportional to 27,181.98, 40,720.86 and 20,932.56

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Solution

The fourth proportional to 27,181.98, 40,720.86 and 20,932.56 is: 31,358.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,181.98 : 40,720.86 = 20,932.56 : x
  2. Step 2: Convert to fraction form
    27,181.98/40,720.86 = 20,932.56/x
  3. Step 3: Cross multiply
    27,181.98x = 40,720.86 × 20,932.56
  4. Step 4: Simplify right side
    27,181.98x = 852,391,845.20
  5. Step 5: Solve for x
    x = 852,391,845.20/27,181.98
  6. Step 6: Final answer
    x = 31,358.71

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1.5x scale

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.