Home / 25,916.78-38,867.34-7,192.28

Finding the Fourth Proportional to 25,916.78, 38,867.34 and 7,192.28

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Solution

The fourth proportional to 25,916.78, 38,867.34 and 7,192.28 is: 10,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,916.78 : 38,867.34 = 7,192.28 : x
  2. Step 2: Convert to fraction form
    25,916.78/38,867.34 = 7,192.28/x
  3. Step 3: Cross multiply
    25,916.78x = 38,867.34 × 7,192.28
  4. Step 4: Simplify right side
    25,916.78x = 279,544,792.14
  5. Step 5: Solve for x
    x = 279,544,792.14/25,916.78
  6. Step 6: Final answer
    x = 10,786.25

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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.