Home / 38,932.86-53,727.36-21,027.88

Finding the Fourth Proportional to 38,932.86, 53,727.36 and 21,027.88

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Solution

The fourth proportional to 38,932.86, 53,727.36 and 21,027.88 is: 29,018.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,932.86 : 53,727.36 = 21,027.88 : x
  2. Step 2: Convert to fraction form
    38,932.86/53,727.36 = 21,027.88/x
  3. Step 3: Cross multiply
    38,932.86x = 53,727.36 × 21,027.88
  4. Step 4: Simplify right side
    38,932.86x = 1,129,772,478.80
  5. Step 5: Solve for x
    x = 1,129,772,478.80/38,932.86
  6. Step 6: Final answer
    x = 29,018.48

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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.