Home / 20,221.03-30,340.05-9,696.70

Finding the Fourth Proportional to 20,221.03, 30,340.05 and 9,696.70

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Solution

The fourth proportional to 20,221.03, 30,340.05 and 9,696.70 is: 14,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.03 : 30,340.05 = 9,696.70 : x
  2. Step 2: Convert to fraction form
    20,221.03/30,340.05 = 9,696.70/x
  3. Step 3: Cross multiply
    20,221.03x = 30,340.05 × 9,696.70
  4. Step 4: Simplify right side
    20,221.03x = 294,198,362.84
  5. Step 5: Solve for x
    x = 294,198,362.84/20,221.03
  6. Step 6: Final answer
    x = 14,549.13

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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.