Home / 20,992.48-31,479.28-6,196.24

Finding the Fourth Proportional to 20,992.48, 31,479.28 and 6,196.24

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Solution

The fourth proportional to 20,992.48, 31,479.28 and 6,196.24 is: 9,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,992.48 : 31,479.28 = 6,196.24 : x
  2. Step 2: Convert to fraction form
    20,992.48/31,479.28 = 6,196.24/x
  3. Step 3: Cross multiply
    20,992.48x = 31,479.28 × 6,196.24
  4. Step 4: Simplify right side
    20,992.48x = 195,053,173.91
  5. Step 5: Solve for x
    x = 195,053,173.91/20,992.48
  6. Step 6: Final answer
    x = 9,291.57

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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.