Home / 20,330.87-30,490.45-7,003.33

Finding the Fourth Proportional to 20,330.87, 30,490.45 and 7,003.33

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Solution

The fourth proportional to 20,330.87, 30,490.45 and 7,003.33 is: 10,502.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.87 : 30,490.45 = 7,003.33 : x
  2. Step 2: Convert to fraction form
    20,330.87/30,490.45 = 7,003.33/x
  3. Step 3: Cross multiply
    20,330.87x = 30,490.45 × 7,003.33
  4. Step 4: Simplify right side
    20,330.87x = 213,534,609.16
  5. Step 5: Solve for x
    x = 213,534,609.16/20,330.87
  6. Step 6: Final answer
    x = 10,502.97

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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.