Home / 26,228.70-39,343.32-20,996.96

Finding the Fourth Proportional to 26,228.70, 39,343.32 and 20,996.96

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Solution

The fourth proportional to 26,228.70, 39,343.32 and 20,996.96 is: 31,495.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,228.70 : 39,343.32 = 20,996.96 : x
  2. Step 2: Convert to fraction form
    26,228.70/39,343.32 = 20,996.96/x
  3. Step 3: Cross multiply
    26,228.70x = 39,343.32 × 20,996.96
  4. Step 4: Simplify right side
    26,228.70x = 826,090,116.31
  5. Step 5: Solve for x
    x = 826,090,116.31/26,228.70
  6. Step 6: Final answer
    x = 31,495.66

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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.