Home / 20,330.42-30,475.17-9,785.03

Finding the Fourth Proportional to 20,330.42, 30,475.17 and 9,785.03

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Solution

The fourth proportional to 20,330.42, 30,475.17 and 9,785.03 is: 14,667.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.42 : 30,475.17 = 9,785.03 : x
  2. Step 2: Convert to fraction form
    20,330.42/30,475.17 = 9,785.03/x
  3. Step 3: Cross multiply
    20,330.42x = 30,475.17 × 9,785.03
  4. Step 4: Simplify right side
    20,330.42x = 298,200,300.33
  5. Step 5: Solve for x
    x = 298,200,300.33/20,330.42
  6. Step 6: Final answer
    x = 14,667.69

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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.