Home / 25,321.40-38,005.32-12,850.28

Finding the Fourth Proportional to 25,321.40, 38,005.32 and 12,850.28

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Solution

The fourth proportional to 25,321.40, 38,005.32 and 12,850.28 is: 19,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,321.40 : 38,005.32 = 12,850.28 : x
  2. Step 2: Convert to fraction form
    25,321.40/38,005.32 = 12,850.28/x
  3. Step 3: Cross multiply
    25,321.40x = 38,005.32 × 12,850.28
  4. Step 4: Simplify right side
    25,321.40x = 488,379,003.49
  5. Step 5: Solve for x
    x = 488,379,003.49/25,321.40
  6. Step 6: Final answer
    x = 19,287.20

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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.