Home / 20,206.81-30,290.77-10,350.73

Finding the Fourth Proportional to 20,206.81, 30,290.77 and 10,350.73

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Solution

The fourth proportional to 20,206.81, 30,290.77 and 10,350.73 is: 15,516.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206.81 : 30,290.77 = 10,350.73 : x
  2. Step 2: Convert to fraction form
    20,206.81/30,290.77 = 10,350.73/x
  3. Step 3: Cross multiply
    20,206.81x = 30,290.77 × 10,350.73
  4. Step 4: Simplify right side
    20,206.81x = 313,531,581.76
  5. Step 5: Solve for x
    x = 313,531,581.76/20,206.81
  6. Step 6: Final answer
    x = 15,516.13

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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.