Home / 20,922.91-31,387.40-7,596.79

Finding the Fourth Proportional to 20,922.91, 31,387.40 and 7,596.79

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Solution

The fourth proportional to 20,922.91, 31,387.40 and 7,596.79 is: 11,396.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.91 : 31,387.40 = 7,596.79 : x
  2. Step 2: Convert to fraction form
    20,922.91/31,387.40 = 7,596.79/x
  3. Step 3: Cross multiply
    20,922.91x = 31,387.40 × 7,596.79
  4. Step 4: Simplify right side
    20,922.91x = 238,443,398.48
  5. Step 5: Solve for x
    x = 238,443,398.48/20,922.91
  6. Step 6: Final answer
    x = 11,396.28

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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.