Home / 38,509.30-57,716.25-21,818.75

Finding the Fourth Proportional to 38,509.30, 57,716.25 and 21,818.75

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Solution

The fourth proportional to 38,509.30, 57,716.25 and 21,818.75 is: 32,701.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,509.30 : 57,716.25 = 21,818.75 : x
  2. Step 2: Convert to fraction form
    38,509.30/57,716.25 = 21,818.75/x
  3. Step 3: Cross multiply
    38,509.30x = 57,716.25 × 21,818.75
  4. Step 4: Simplify right side
    38,509.30x = 1,259,296,059.29
  5. Step 5: Solve for x
    x = 1,259,296,059.29/38,509.30
  6. Step 6: Final answer
    x = 32,701.09

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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.