Home / 38,530.80-57,731.40-25,376.40

Finding the Fourth Proportional to 38,530.80, 57,731.40 and 25,376.40

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Solution

The fourth proportional to 38,530.80, 57,731.40 and 25,376.40 is: 38,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,530.80 : 57,731.40 = 25,376.40 : x
  2. Step 2: Convert to fraction form
    38,530.80/57,731.40 = 25,376.40/x
  3. Step 3: Cross multiply
    38,530.80x = 57,731.40 × 25,376.40
  4. Step 4: Simplify right side
    38,530.80x = 1,465,015,098.96
  5. Step 5: Solve for x
    x = 1,465,015,098.96/38,530.80
  6. Step 6: Final answer
    x = 38,021.92

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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.