Home / 40,917.48-61,350-19,561.38

Finding the Fourth Proportional to 40,917.48, 61,350 and 19,561.38

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Solution

The fourth proportional to 40,917.48, 61,350 and 19,561.38 is: 29,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,917.48 : 61,350 = 19,561.38 : x
  2. Step 2: Convert to fraction form
    40,917.48/61,350 = 19,561.38/x
  3. Step 3: Cross multiply
    40,917.48x = 61,350 × 19,561.38
  4. Step 4: Simplify right side
    40,917.48x = 1,200,090,663
  5. Step 5: Solve for x
    x = 1,200,090,663/40,917.48
  6. Step 6: Final answer
    x = 29,329.54

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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.