Home / 38,115.30-57,208.40-19,409.32

Finding the Fourth Proportional to 38,115.30, 57,208.40 and 19,409.32

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Solution

The fourth proportional to 38,115.30, 57,208.40 and 19,409.32 is: 29,132.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.30 : 57,208.40 = 19,409.32 : x
  2. Step 2: Convert to fraction form
    38,115.30/57,208.40 = 19,409.32/x
  3. Step 3: Cross multiply
    38,115.30x = 57,208.40 × 19,409.32
  4. Step 4: Simplify right side
    38,115.30x = 1,110,376,142.29
  5. Step 5: Solve for x
    x = 1,110,376,142.29/38,115.30
  6. Step 6: Final answer
    x = 29,132.03

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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.