Home / 28,500.48-39,331.44-15,926.04

Finding the Fourth Proportional to 28,500.48, 39,331.44 and 15,926.04

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Solution

The fourth proportional to 28,500.48, 39,331.44 and 15,926.04 is: 21,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.48 : 39,331.44 = 15,926.04 : x
  2. Step 2: Convert to fraction form
    28,500.48/39,331.44 = 15,926.04/x
  3. Step 3: Cross multiply
    28,500.48x = 39,331.44 × 15,926.04
  4. Step 4: Simplify right side
    28,500.48x = 626,394,086.70
  5. Step 5: Solve for x
    x = 626,394,086.70/28,500.48
  6. Step 6: Final answer
    x = 21,978.37

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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.