Home / 28,524.96-42,781.68-19,838.88

Finding the Fourth Proportional to 28,524.96, 42,781.68 and 19,838.88

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Solution

The fourth proportional to 28,524.96, 42,781.68 and 19,838.88 is: 29,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,524.96 : 42,781.68 = 19,838.88 : x
  2. Step 2: Convert to fraction form
    28,524.96/42,781.68 = 19,838.88/x
  3. Step 3: Cross multiply
    28,524.96x = 42,781.68 × 19,838.88
  4. Step 4: Simplify right side
    28,524.96x = 848,740,615.72
  5. Step 5: Solve for x
    x = 848,740,615.72/28,524.96
  6. Step 6: Final answer
    x = 29,754.31

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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.