Home / 28,861.78-43,342.08-17,833.90

Finding the Fourth Proportional to 28,861.78, 43,342.08 and 17,833.90

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Solution

The fourth proportional to 28,861.78, 43,342.08 and 17,833.90 is: 26,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.78 : 43,342.08 = 17,833.90 : x
  2. Step 2: Convert to fraction form
    28,861.78/43,342.08 = 17,833.90/x
  3. Step 3: Cross multiply
    28,861.78x = 43,342.08 × 17,833.90
  4. Step 4: Simplify right side
    28,861.78x = 772,958,320.51
  5. Step 5: Solve for x
    x = 772,958,320.51/28,861.78
  6. Step 6: Final answer
    x = 26,781.38

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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.