Home / 27,078.17-40,621.10-8,359.74

Finding the Fourth Proportional to 27,078.17, 40,621.10 and 8,359.74

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Solution

The fourth proportional to 27,078.17, 40,621.10 and 8,359.74 is: 12,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,078.17 : 40,621.10 = 8,359.74 : x
  2. Step 2: Convert to fraction form
    27,078.17/40,621.10 = 8,359.74/x
  3. Step 3: Cross multiply
    27,078.17x = 40,621.10 × 8,359.74
  4. Step 4: Simplify right side
    27,078.17x = 339,581,792.72
  5. Step 5: Solve for x
    x = 339,581,792.72/27,078.17
  6. Step 6: Final answer
    x = 12,540.80

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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.