Home / 27,785.10-41,677.65-11,147.70

Finding the Fourth Proportional to 27,785.10, 41,677.65 and 11,147.70

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Solution

The fourth proportional to 27,785.10, 41,677.65 and 11,147.70 is: 16,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.10 : 41,677.65 = 11,147.70 : x
  2. Step 2: Convert to fraction form
    27,785.10/41,677.65 = 11,147.70/x
  3. Step 3: Cross multiply
    27,785.10x = 41,677.65 × 11,147.70
  4. Step 4: Simplify right side
    27,785.10x = 464,609,938.91
  5. Step 5: Solve for x
    x = 464,609,938.91/27,785.10
  6. Step 6: Final answer
    x = 16,721.55

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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.