Home / 20,759.67-31,133.40-9,508.64

Finding the Fourth Proportional to 20,759.67, 31,133.40 and 9,508.64

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Solution

The fourth proportional to 20,759.67, 31,133.40 and 9,508.64 is: 14,260.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.67 : 31,133.40 = 9,508.64 : x
  2. Step 2: Convert to fraction form
    20,759.67/31,133.40 = 9,508.64/x
  3. Step 3: Cross multiply
    20,759.67x = 31,133.40 × 9,508.64
  4. Step 4: Simplify right side
    20,759.67x = 296,036,136.91
  5. Step 5: Solve for x
    x = 296,036,136.91/20,759.67
  6. Step 6: Final answer
    x = 14,260.16

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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.