Home / 38,157.81-57,246.43-11,862.78

Finding the Fourth Proportional to 38,157.81, 57,246.43 and 11,862.78

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Solution

The fourth proportional to 38,157.81, 57,246.43 and 11,862.78 is: 17,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,157.81 : 57,246.43 = 11,862.78 : x
  2. Step 2: Convert to fraction form
    38,157.81/57,246.43 = 11,862.78/x
  3. Step 3: Cross multiply
    38,157.81x = 57,246.43 × 11,862.78
  4. Step 4: Simplify right side
    38,157.81x = 679,101,804.88
  5. Step 5: Solve for x
    x = 679,101,804.88/38,157.81
  6. Step 6: Final answer
    x = 17,797.19

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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.