Home / 20,634.34-30,942.50-7,302.90

Finding the Fourth Proportional to 20,634.34, 30,942.50 and 7,302.90

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Solution

The fourth proportional to 20,634.34, 30,942.50 and 7,302.90 is: 10,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.34 : 30,942.50 = 7,302.90 : x
  2. Step 2: Convert to fraction form
    20,634.34/30,942.50 = 7,302.90/x
  3. Step 3: Cross multiply
    20,634.34x = 30,942.50 × 7,302.90
  4. Step 4: Simplify right side
    20,634.34x = 225,970,071.90
  5. Step 5: Solve for x
    x = 225,970,071.90/20,634.34
  6. Step 6: Final answer
    x = 10,951.16

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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.