Home / 27,175.78-40,777.92-19,740.76

Finding the Fourth Proportional to 27,175.78, 40,777.92 and 19,740.76

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Solution

The fourth proportional to 27,175.78, 40,777.92 and 19,740.76 is: 29,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,175.78 : 40,777.92 = 19,740.76 : x
  2. Step 2: Convert to fraction form
    27,175.78/40,777.92 = 19,740.76/x
  3. Step 3: Cross multiply
    27,175.78x = 40,777.92 × 19,740.76
  4. Step 4: Simplify right side
    27,175.78x = 804,987,033.32
  5. Step 5: Solve for x
    x = 804,987,033.32/27,175.78
  6. Step 6: Final answer
    x = 29,621.49

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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.