Home / 38,400.86-52,996.27-21,410.61

Finding the Fourth Proportional to 38,400.86, 52,996.27 and 21,410.61

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Solution

The fourth proportional to 38,400.86, 52,996.27 and 21,410.61 is: 29,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400.86 : 52,996.27 = 21,410.61 : x
  2. Step 2: Convert to fraction form
    38,400.86/52,996.27 = 21,410.61/x
  3. Step 3: Cross multiply
    38,400.86x = 52,996.27 × 21,410.61
  4. Step 4: Simplify right side
    38,400.86x = 1,134,682,468.42
  5. Step 5: Solve for x
    x = 1,134,682,468.42/38,400.86
  6. Step 6: Final answer
    x = 29,548.36

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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.