Home / 26,100.84-39,102-20,228.72

Finding the Fourth Proportional to 26,100.84, 39,102 and 20,228.72

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Solution

The fourth proportional to 26,100.84, 39,102 and 20,228.72 is: 30,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,100.84 : 39,102 = 20,228.72 : x
  2. Step 2: Convert to fraction form
    26,100.84/39,102 = 20,228.72/x
  3. Step 3: Cross multiply
    26,100.84x = 39,102 × 20,228.72
  4. Step 4: Simplify right side
    26,100.84x = 790,983,409.44
  5. Step 5: Solve for x
    x = 790,983,409.44/26,100.84
  6. Step 6: Final answer
    x = 30,304.90

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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.