Home / 38,646.08-57,977.42-11,991.52

Finding the Fourth Proportional to 38,646.08, 57,977.42 and 11,991.52

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Solution

The fourth proportional to 38,646.08, 57,977.42 and 11,991.52 is: 17,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,646.08 : 57,977.42 = 11,991.52 : x
  2. Step 2: Convert to fraction form
    38,646.08/57,977.42 = 11,991.52/x
  3. Step 3: Cross multiply
    38,646.08x = 57,977.42 × 11,991.52
  4. Step 4: Simplify right side
    38,646.08x = 695,237,391.48
  5. Step 5: Solve for x
    x = 695,237,391.48/38,646.08
  6. Step 6: Final answer
    x = 17,989.86

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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.