Home / 20,419.46-30,621.26-7,937.83

Finding the Fourth Proportional to 20,419.46, 30,621.26 and 7,937.83

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Solution

The fourth proportional to 20,419.46, 30,621.26 and 7,937.83 is: 11,903.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,419.46 : 30,621.26 = 7,937.83 : x
  2. Step 2: Convert to fraction form
    20,419.46/30,621.26 = 7,937.83/x
  3. Step 3: Cross multiply
    20,419.46x = 30,621.26 × 7,937.83
  4. Step 4: Simplify right side
    20,419.46x = 243,066,316.58
  5. Step 5: Solve for x
    x = 243,066,316.58/20,419.46
  6. Step 6: Final answer
    x = 11,903.66

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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.