Home / 20,967.30-31,456.35-6,176.25

Finding the Fourth Proportional to 20,967.30, 31,456.35 and 6,176.25

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Solution

The fourth proportional to 20,967.30, 31,456.35 and 6,176.25 is: 9,265.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967.30 : 31,456.35 = 6,176.25 : x
  2. Step 2: Convert to fraction form
    20,967.30/31,456.35 = 6,176.25/x
  3. Step 3: Cross multiply
    20,967.30x = 31,456.35 × 6,176.25
  4. Step 4: Simplify right side
    20,967.30x = 194,282,281.69
  5. Step 5: Solve for x
    x = 194,282,281.69/20,967.30
  6. Step 6: Final answer
    x = 9,265.97

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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.