Home / 20,620.46-30,903.15-10,739.02

Finding the Fourth Proportional to 20,620.46, 30,903.15 and 10,739.02

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Solution

The fourth proportional to 20,620.46, 30,903.15 and 10,739.02 is: 16,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.46 : 30,903.15 = 10,739.02 : x
  2. Step 2: Convert to fraction form
    20,620.46/30,903.15 = 10,739.02/x
  3. Step 3: Cross multiply
    20,620.46x = 30,903.15 × 10,739.02
  4. Step 4: Simplify right side
    20,620.46x = 331,869,545.91
  5. Step 5: Solve for x
    x = 331,869,545.91/20,620.46
  6. Step 6: Final answer
    x = 16,094.19

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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.