Home / 25,404.57-38,112.80-7,873.47

Finding the Fourth Proportional to 25,404.57, 38,112.80 and 7,873.47

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Solution

The fourth proportional to 25,404.57, 38,112.80 and 7,873.47 is: 11,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,404.57 : 38,112.80 = 7,873.47 : x
  2. Step 2: Convert to fraction form
    25,404.57/38,112.80 = 7,873.47/x
  3. Step 3: Cross multiply
    25,404.57x = 38,112.80 × 7,873.47
  4. Step 4: Simplify right side
    25,404.57x = 300,079,948.05
  5. Step 5: Solve for x
    x = 300,079,948.05/25,404.57
  6. Step 6: Final answer
    x = 11,812.05

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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.