Home / 20,065.67-27,690.86-11,113.33

Finding the Fourth Proportional to 20,065.67, 27,690.86 and 11,113.33

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Solution

The fourth proportional to 20,065.67, 27,690.86 and 11,113.33 is: 15,336.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.67 : 27,690.86 = 11,113.33 : x
  2. Step 2: Convert to fraction form
    20,065.67/27,690.86 = 11,113.33/x
  3. Step 3: Cross multiply
    20,065.67x = 27,690.86 × 11,113.33
  4. Step 4: Simplify right side
    20,065.67x = 307,737,665.16
  5. Step 5: Solve for x
    x = 307,737,665.16/20,065.67
  6. Step 6: Final answer
    x = 15,336.53

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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.