Home / 27,945.12-41,911.18-8,218.40

Finding the Fourth Proportional to 27,945.12, 41,911.18 and 8,218.40

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Solution

The fourth proportional to 27,945.12, 41,911.18 and 8,218.40 is: 12,325.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.12 : 41,911.18 = 8,218.40 : x
  2. Step 2: Convert to fraction form
    27,945.12/41,911.18 = 8,218.40/x
  3. Step 3: Cross multiply
    27,945.12x = 41,911.18 × 8,218.40
  4. Step 4: Simplify right side
    27,945.12x = 344,442,841.71
  5. Step 5: Solve for x
    x = 344,442,841.71/27,945.12
  6. Step 6: Final answer
    x = 12,325.69

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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.