Home / 20,303.46-30,446.01-7,149.06

Finding the Fourth Proportional to 20,303.46, 30,446.01 and 7,149.06

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Solution

The fourth proportional to 20,303.46, 30,446.01 and 7,149.06 is: 10,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.46 : 30,446.01 = 7,149.06 : x
  2. Step 2: Convert to fraction form
    20,303.46/30,446.01 = 7,149.06/x
  3. Step 3: Cross multiply
    20,303.46x = 30,446.01 × 7,149.06
  4. Step 4: Simplify right side
    20,303.46x = 217,660,352.25
  5. Step 5: Solve for x
    x = 217,660,352.25/20,303.46
  6. Step 6: Final answer
    x = 10,720.36

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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.