Home / 38,939.66-53,736.67-21,034.66

Finding the Fourth Proportional to 38,939.66, 53,736.67 and 21,034.66

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Solution

The fourth proportional to 38,939.66, 53,736.67 and 21,034.66 is: 29,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.66 : 53,736.67 = 21,034.66 : x
  2. Step 2: Convert to fraction form
    38,939.66/53,736.67 = 21,034.66/x
  3. Step 3: Cross multiply
    38,939.66x = 53,736.67 × 21,034.66
  4. Step 4: Simplify right side
    38,939.66x = 1,130,332,314.30
  5. Step 5: Solve for x
    x = 1,130,332,314.30/38,939.66
  6. Step 6: Final answer
    x = 29,027.79

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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.