Home / 20,743.40-31,096.20-7,592.60

Finding the Fourth Proportional to 20,743.40, 31,096.20 and 7,592.60

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Solution

The fourth proportional to 20,743.40, 31,096.20 and 7,592.60 is: 11,381.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.40 : 31,096.20 = 7,592.60 : x
  2. Step 2: Convert to fraction form
    20,743.40/31,096.20 = 7,592.60/x
  3. Step 3: Cross multiply
    20,743.40x = 31,096.20 × 7,592.60
  4. Step 4: Simplify right side
    20,743.40x = 236,101,008.12
  5. Step 5: Solve for x
    x = 236,101,008.12/20,743.40
  6. Step 6: Final answer
    x = 11,381.98

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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.