Home / 20,217.79-30,347.87-9,696.73

Finding the Fourth Proportional to 20,217.79, 30,347.87 and 9,696.73

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Solution

The fourth proportional to 20,217.79, 30,347.87 and 9,696.73 is: 14,555.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.79 : 30,347.87 = 9,696.73 : x
  2. Step 2: Convert to fraction form
    20,217.79/30,347.87 = 9,696.73/x
  3. Step 3: Cross multiply
    20,217.79x = 30,347.87 × 9,696.73
  4. Step 4: Simplify right side
    20,217.79x = 294,275,034.01
  5. Step 5: Solve for x
    x = 294,275,034.01/20,217.79
  6. Step 6: Final answer
    x = 14,555.26

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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.