Home / 27,140.69-40,650.89-20,854.43

Finding the Fourth Proportional to 27,140.69, 40,650.89 and 20,854.43

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Solution

The fourth proportional to 27,140.69, 40,650.89 and 20,854.43 is: 31,235.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.69 : 40,650.89 = 20,854.43 : x
  2. Step 2: Convert to fraction form
    27,140.69/40,650.89 = 20,854.43/x
  3. Step 3: Cross multiply
    27,140.69x = 40,650.89 × 20,854.43
  4. Step 4: Simplify right side
    27,140.69x = 847,751,035.67
  5. Step 5: Solve for x
    x = 847,751,035.67/27,140.69
  6. Step 6: Final answer
    x = 31,235.43

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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.