Home / 20,018.82-30,046.42-10,666.66

Finding the Fourth Proportional to 20,018.82, 30,046.42 and 10,666.66

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Solution

The fourth proportional to 20,018.82, 30,046.42 and 10,666.66 is: 16,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.82 : 30,046.42 = 10,666.66 : x
  2. Step 2: Convert to fraction form
    20,018.82/30,046.42 = 10,666.66/x
  3. Step 3: Cross multiply
    20,018.82x = 30,046.42 × 10,666.66
  4. Step 4: Simplify right side
    20,018.82x = 320,494,946.36
  5. Step 5: Solve for x
    x = 320,494,946.36/20,018.82
  6. Step 6: Final answer
    x = 16,009.68

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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.