Home / 37,635.72-51,939.59-21,721.19

Finding the Fourth Proportional to 37,635.72, 51,939.59 and 21,721.19

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Solution

The fourth proportional to 37,635.72, 51,939.59 and 21,721.19 is: 29,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,635.72 : 51,939.59 = 21,721.19 : x
  2. Step 2: Convert to fraction form
    37,635.72/51,939.59 = 21,721.19/x
  3. Step 3: Cross multiply
    37,635.72x = 51,939.59 × 21,721.19
  4. Step 4: Simplify right side
    37,635.72x = 1,128,189,529.38
  5. Step 5: Solve for x
    x = 1,128,189,529.38/37,635.72
  6. Step 6: Final answer
    x = 29,976.57

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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.