Home / 28,514.87-39,349.96-15,768.50

Finding the Fourth Proportional to 28,514.87, 39,349.96 and 15,768.50

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Solution

The fourth proportional to 28,514.87, 39,349.96 and 15,768.50 is: 21,760.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.87 : 39,349.96 = 15,768.50 : x
  2. Step 2: Convert to fraction form
    28,514.87/39,349.96 = 15,768.50/x
  3. Step 3: Cross multiply
    28,514.87x = 39,349.96 × 15,768.50
  4. Step 4: Simplify right side
    28,514.87x = 620,489,844.26
  5. Step 5: Solve for x
    x = 620,489,844.26/28,514.87
  6. Step 6: Final answer
    x = 21,760.22

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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.