Home / 20,600.13-30,900.21-5,017.62

Finding the Fourth Proportional to 20,600.13, 30,900.21 and 5,017.62

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Solution

The fourth proportional to 20,600.13, 30,900.21 and 5,017.62 is: 7,526.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.13 : 30,900.21 = 5,017.62 : x
  2. Step 2: Convert to fraction form
    20,600.13/30,900.21 = 5,017.62/x
  3. Step 3: Cross multiply
    20,600.13x = 30,900.21 × 5,017.62
  4. Step 4: Simplify right side
    20,600.13x = 155,045,511.70
  5. Step 5: Solve for x
    x = 155,045,511.70/20,600.13
  6. Step 6: Final answer
    x = 7,526.43

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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.