Home / 20,074.98-27,701.45-11,120.82

Finding the Fourth Proportional to 20,074.98, 27,701.45 and 11,120.82

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Solution

The fourth proportional to 20,074.98, 27,701.45 and 11,120.82 is: 15,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.98 : 27,701.45 = 11,120.82 : x
  2. Step 2: Convert to fraction form
    20,074.98/27,701.45 = 11,120.82/x
  3. Step 3: Cross multiply
    20,074.98x = 27,701.45 × 11,120.82
  4. Step 4: Simplify right side
    20,074.98x = 308,062,721.41
  5. Step 5: Solve for x
    x = 308,062,721.41/20,074.98
  6. Step 6: Final answer
    x = 15,345.60

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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.