Home / 38,939.63-53,736.71-21,034.62

Finding the Fourth Proportional to 38,939.63, 53,736.71 and 21,034.62

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Solution

The fourth proportional to 38,939.63, 53,736.71 and 21,034.62 is: 29,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.63 : 53,736.71 = 21,034.62 : x
  2. Step 2: Convert to fraction form
    38,939.63/53,736.71 = 21,034.62/x
  3. Step 3: Cross multiply
    38,939.63x = 53,736.71 × 21,034.62
  4. Step 4: Simplify right side
    38,939.63x = 1,130,331,169.73
  5. Step 5: Solve for x
    x = 1,130,331,169.73/38,939.63
  6. Step 6: Final answer
    x = 29,027.79

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1.5x scale

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.