Home / 20,207.53-30,311.35-7,059.90

Finding the Fourth Proportional to 20,207.53, 30,311.35 and 7,059.90

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Solution

The fourth proportional to 20,207.53, 30,311.35 and 7,059.90 is: 10,589.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.53 : 30,311.35 = 7,059.90 : x
  2. Step 2: Convert to fraction form
    20,207.53/30,311.35 = 7,059.90/x
  3. Step 3: Cross multiply
    20,207.53x = 30,311.35 × 7,059.90
  4. Step 4: Simplify right side
    20,207.53x = 213,995,117.51
  5. Step 5: Solve for x
    x = 213,995,117.51/20,207.53
  6. Step 6: Final answer
    x = 10,589.87

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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.