Home / 20,767.73-31,155.71-7,620.22

Finding the Fourth Proportional to 20,767.73, 31,155.71 and 7,620.22

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Solution

The fourth proportional to 20,767.73, 31,155.71 and 7,620.22 is: 11,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.73 : 31,155.71 = 7,620.22 : x
  2. Step 2: Convert to fraction form
    20,767.73/31,155.71 = 7,620.22/x
  3. Step 3: Cross multiply
    20,767.73x = 31,155.71 × 7,620.22
  4. Step 4: Simplify right side
    20,767.73x = 237,413,364.46
  5. Step 5: Solve for x
    x = 237,413,364.46/20,767.73
  6. Step 6: Final answer
    x = 11,431.84

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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.