Home / 20,631.96-30,946.74-11,860.44

Finding the Fourth Proportional to 20,631.96, 30,946.74 and 11,860.44

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Solution

The fourth proportional to 20,631.96, 30,946.74 and 11,860.44 is: 17,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631.96 : 30,946.74 = 11,860.44 : x
  2. Step 2: Convert to fraction form
    20,631.96/30,946.74 = 11,860.44/x
  3. Step 3: Cross multiply
    20,631.96x = 30,946.74 × 11,860.44
  4. Step 4: Simplify right side
    20,631.96x = 367,041,952.97
  5. Step 5: Solve for x
    x = 367,041,952.97/20,631.96
  6. Step 6: Final answer
    x = 17,789.97

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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.