Home / 25,920.78-38,873.34-7,196.28

Finding the Fourth Proportional to 25,920.78, 38,873.34 and 7,196.28

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Solution

The fourth proportional to 25,920.78, 38,873.34 and 7,196.28 is: 10,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.78 : 38,873.34 = 7,196.28 : x
  2. Step 2: Convert to fraction form
    25,920.78/38,873.34 = 7,196.28/x
  3. Step 3: Cross multiply
    25,920.78x = 38,873.34 × 7,196.28
  4. Step 4: Simplify right side
    25,920.78x = 279,743,439.18
  5. Step 5: Solve for x
    x = 279,743,439.18/25,920.78
  6. Step 6: Final answer
    x = 10,792.25

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1.5x scale

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.