Home / 26,126.60-39,125.10-20,942.60

Finding the Fourth Proportional to 26,126.60, 39,125.10 and 20,942.60

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Solution

The fourth proportional to 26,126.60, 39,125.10 and 20,942.60 is: 31,361.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,126.60 : 39,125.10 = 20,942.60 : x
  2. Step 2: Convert to fraction form
    26,126.60/39,125.10 = 20,942.60/x
  3. Step 3: Cross multiply
    26,126.60x = 39,125.10 × 20,942.60
  4. Step 4: Simplify right side
    26,126.60x = 819,381,319.26
  5. Step 5: Solve for x
    x = 819,381,319.26/26,126.60
  6. Step 6: Final answer
    x = 31,361.96

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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.