Home / 27,140.94-40,651.26-20,854.68

Finding the Fourth Proportional to 27,140.94, 40,651.26 and 20,854.68

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Solution

The fourth proportional to 27,140.94, 40,651.26 and 20,854.68 is: 31,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.94 : 40,651.26 = 20,854.68 : x
  2. Step 2: Convert to fraction form
    27,140.94/40,651.26 = 20,854.68/x
  3. Step 3: Cross multiply
    27,140.94x = 40,651.26 × 20,854.68
  4. Step 4: Simplify right side
    27,140.94x = 847,769,018.90
  5. Step 5: Solve for x
    x = 847,769,018.90/27,140.94
  6. Step 6: Final answer
    x = 31,235.80

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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.