Home / 26,257.16-39,372.60-8,720.84

Finding the Fourth Proportional to 26,257.16, 39,372.60 and 8,720.84

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Solution

The fourth proportional to 26,257.16, 39,372.60 and 8,720.84 is: 13,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,257.16 : 39,372.60 = 8,720.84 : x
  2. Step 2: Convert to fraction form
    26,257.16/39,372.60 = 8,720.84/x
  3. Step 3: Cross multiply
    26,257.16x = 39,372.60 × 8,720.84
  4. Step 4: Simplify right side
    26,257.16x = 343,362,144.98
  5. Step 5: Solve for x
    x = 343,362,144.98/26,257.16
  6. Step 6: Final answer
    x = 13,076.90

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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.