Home / 26,250.40-39,390-12,399.04

Finding the Fourth Proportional to 26,250.40, 39,390 and 12,399.04

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Solution

The fourth proportional to 26,250.40, 39,390 and 12,399.04 is: 18,605.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,250.40 : 39,390 = 12,399.04 : x
  2. Step 2: Convert to fraction form
    26,250.40/39,390 = 12,399.04/x
  3. Step 3: Cross multiply
    26,250.40x = 39,390 × 12,399.04
  4. Step 4: Simplify right side
    26,250.40x = 488,398,185.60
  5. Step 5: Solve for x
    x = 488,398,185.60/26,250.40
  6. Step 6: Final answer
    x = 18,605.36

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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.