Home / 20,102.30-30,132.17-6,762.60

Finding the Fourth Proportional to 20,102.30, 30,132.17 and 6,762.60

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Solution

The fourth proportional to 20,102.30, 30,132.17 and 6,762.60 is: 10,136.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.30 : 30,132.17 = 6,762.60 : x
  2. Step 2: Convert to fraction form
    20,102.30/30,132.17 = 6,762.60/x
  3. Step 3: Cross multiply
    20,102.30x = 30,132.17 × 6,762.60
  4. Step 4: Simplify right side
    20,102.30x = 203,771,829.75
  5. Step 5: Solve for x
    x = 203,771,829.75/20,102.30
  6. Step 6: Final answer
    x = 10,136.74

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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.