Home / 20,074.83-27,702.45-11,122.71

Finding the Fourth Proportional to 20,074.83, 27,702.45 and 11,122.71

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Solution

The fourth proportional to 20,074.83, 27,702.45 and 11,122.71 is: 15,348.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.83 : 27,702.45 = 11,122.71 : x
  2. Step 2: Convert to fraction form
    20,074.83/27,702.45 = 11,122.71/x
  3. Step 3: Cross multiply
    20,074.83x = 27,702.45 × 11,122.71
  4. Step 4: Simplify right side
    20,074.83x = 308,126,317.64
  5. Step 5: Solve for x
    x = 308,126,317.64/20,074.83
  6. Step 6: Final answer
    x = 15,348.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.