Home / 38,072.56-57,112.67-13,109.31

Finding the Fourth Proportional to 38,072.56, 57,112.67 and 13,109.31

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Solution

The fourth proportional to 38,072.56, 57,112.67 and 13,109.31 is: 19,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,072.56 : 57,112.67 = 13,109.31 : x
  2. Step 2: Convert to fraction form
    38,072.56/57,112.67 = 13,109.31/x
  3. Step 3: Cross multiply
    38,072.56x = 57,112.67 × 13,109.31
  4. Step 4: Simplify right side
    38,072.56x = 748,707,684.84
  5. Step 5: Solve for x
    x = 748,707,684.84/38,072.56
  6. Step 6: Final answer
    x = 19,665.28

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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.