Home / 20,851.07-31,276.62-5,268.69

Finding the Fourth Proportional to 20,851.07, 31,276.62 and 5,268.69

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Solution

The fourth proportional to 20,851.07, 31,276.62 and 5,268.69 is: 7,903.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851.07 : 31,276.62 = 5,268.69 : x
  2. Step 2: Convert to fraction form
    20,851.07/31,276.62 = 5,268.69/x
  3. Step 3: Cross multiply
    20,851.07x = 31,276.62 × 5,268.69
  4. Step 4: Simplify right side
    20,851.07x = 164,786,815.03
  5. Step 5: Solve for x
    x = 164,786,815.03/20,851.07
  6. Step 6: Final answer
    x = 7,903.04

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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.