Home / 38,693.42-57,939.33-21,127.22

Finding the Fourth Proportional to 38,693.42, 57,939.33 and 21,127.22

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Solution

The fourth proportional to 38,693.42, 57,939.33 and 21,127.22 is: 31,635.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,693.42 : 57,939.33 = 21,127.22 : x
  2. Step 2: Convert to fraction form
    38,693.42/57,939.33 = 21,127.22/x
  3. Step 3: Cross multiply
    38,693.42x = 57,939.33 × 21,127.22
  4. Step 4: Simplify right side
    38,693.42x = 1,224,096,971.56
  5. Step 5: Solve for x
    x = 1,224,096,971.56/38,693.42
  6. Step 6: Final answer
    x = 31,635.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.