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Finding the Fourth Proportional to 35,650.69, 53,458.03 and 20,864.05

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Solution

The fourth proportional to 35,650.69, 53,458.03 and 20,864.05 is: 31,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,650.69 : 53,458.03 = 20,864.05 : x
  2. Step 2: Convert to fraction form
    35,650.69/53,458.03 = 20,864.05/x
  3. Step 3: Cross multiply
    35,650.69x = 53,458.03 × 20,864.05
  4. Step 4: Simplify right side
    35,650.69x = 1,115,351,010.82
  5. Step 5: Solve for x
    x = 1,115,351,010.82/35,650.69
  6. Step 6: Final answer
    x = 31,285.54

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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.