Home / 20,242.07-30,361.92-7,761.59

Finding the Fourth Proportional to 20,242.07, 30,361.92 and 7,761.59

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Solution

The fourth proportional to 20,242.07, 30,361.92 and 7,761.59 is: 11,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.07 : 30,361.92 = 7,761.59 : x
  2. Step 2: Convert to fraction form
    20,242.07/30,361.92 = 7,761.59/x
  3. Step 3: Cross multiply
    20,242.07x = 30,361.92 × 7,761.59
  4. Step 4: Simplify right side
    20,242.07x = 235,656,622.84
  5. Step 5: Solve for x
    x = 235,656,622.84/20,242.07
  6. Step 6: Final answer
    x = 11,641.93

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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.