Home / 20,189.17-30,280.17-6,145.79

Finding the Fourth Proportional to 20,189.17, 30,280.17 and 6,145.79

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Solution

The fourth proportional to 20,189.17, 30,280.17 and 6,145.79 is: 9,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.17 : 30,280.17 = 6,145.79 : x
  2. Step 2: Convert to fraction form
    20,189.17/30,280.17 = 6,145.79/x
  3. Step 3: Cross multiply
    20,189.17x = 30,280.17 × 6,145.79
  4. Step 4: Simplify right side
    20,189.17x = 186,095,565.98
  5. Step 5: Solve for x
    x = 186,095,565.98/20,189.17
  6. Step 6: Final answer
    x = 9,217.59

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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.