Home / 27,137.94-40,646.76-20,851.68

Finding the Fourth Proportional to 27,137.94, 40,646.76 and 20,851.68

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Solution

The fourth proportional to 27,137.94, 40,646.76 and 20,851.68 is: 31,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,137.94 : 40,646.76 = 20,851.68 : x
  2. Step 2: Convert to fraction form
    27,137.94/40,646.76 = 20,851.68/x
  3. Step 3: Cross multiply
    27,137.94x = 40,646.76 × 20,851.68
  4. Step 4: Simplify right side
    27,137.94x = 847,553,195.44
  5. Step 5: Solve for x
    x = 847,553,195.44/27,137.94
  6. Step 6: Final answer
    x = 31,231.31

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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.