Home / 20,722.23-31,091.54-7,575.62

Finding the Fourth Proportional to 20,722.23, 31,091.54 and 7,575.62

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Solution

The fourth proportional to 20,722.23, 31,091.54 and 7,575.62 is: 11,366.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.23 : 31,091.54 = 7,575.62 : x
  2. Step 2: Convert to fraction form
    20,722.23/31,091.54 = 7,575.62/x
  3. Step 3: Cross multiply
    20,722.23x = 31,091.54 × 7,575.62
  4. Step 4: Simplify right side
    20,722.23x = 235,537,498.92
  5. Step 5: Solve for x
    x = 235,537,498.92/20,722.23
  6. Step 6: Final answer
    x = 11,366.42

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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.