Home / 38,078.67-57,018.65-30,642.51

Finding the Fourth Proportional to 38,078.67, 57,018.65 and 30,642.51

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Solution

The fourth proportional to 38,078.67, 57,018.65 and 30,642.51 is: 45,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,078.67 : 57,018.65 = 30,642.51 : x
  2. Step 2: Convert to fraction form
    38,078.67/57,018.65 = 30,642.51/x
  3. Step 3: Cross multiply
    38,078.67x = 57,018.65 × 30,642.51
  4. Step 4: Simplify right side
    38,078.67x = 1,747,194,399.60
  5. Step 5: Solve for x
    x = 1,747,194,399.60/38,078.67
  6. Step 6: Final answer
    x = 45,883.81

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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.