Home / 20,140.66-30,214.23-6,996.79

Finding the Fourth Proportional to 20,140.66, 30,214.23 and 6,996.79

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Solution

The fourth proportional to 20,140.66, 30,214.23 and 6,996.79 is: 10,496.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.66 : 30,214.23 = 6,996.79 : x
  2. Step 2: Convert to fraction form
    20,140.66/30,214.23 = 6,996.79/x
  3. Step 3: Cross multiply
    20,140.66x = 30,214.23 × 6,996.79
  4. Step 4: Simplify right side
    20,140.66x = 211,402,622.32
  5. Step 5: Solve for x
    x = 211,402,622.32/20,140.66
  6. Step 6: Final answer
    x = 10,496.31

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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.