Home / 20,809.31-31,213.05-6,017.90

Finding the Fourth Proportional to 20,809.31, 31,213.05 and 6,017.90

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Solution

The fourth proportional to 20,809.31, 31,213.05 and 6,017.90 is: 9,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809.31 : 31,213.05 = 6,017.90 : x
  2. Step 2: Convert to fraction form
    20,809.31/31,213.05 = 6,017.90/x
  3. Step 3: Cross multiply
    20,809.31x = 31,213.05 × 6,017.90
  4. Step 4: Simplify right side
    20,809.31x = 187,836,834.96
  5. Step 5: Solve for x
    x = 187,836,834.96/20,809.31
  6. Step 6: Final answer
    x = 9,026.58

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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.