Home / 25,388.12-38,084.68-8,745.92

Finding the Fourth Proportional to 25,388.12, 38,084.68 and 8,745.92

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Solution

The fourth proportional to 25,388.12, 38,084.68 and 8,745.92 is: 13,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.12 : 38,084.68 = 8,745.92 : x
  2. Step 2: Convert to fraction form
    25,388.12/38,084.68 = 8,745.92/x
  3. Step 3: Cross multiply
    25,388.12x = 38,084.68 × 8,745.92
  4. Step 4: Simplify right side
    25,388.12x = 333,085,564.51
  5. Step 5: Solve for x
    x = 333,085,564.51/25,388.12
  6. Step 6: Final answer
    x = 13,119.74

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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.