Home / 20,219.54-30,329.34-10,353.44

Finding the Fourth Proportional to 20,219.54, 30,329.34 and 10,353.44

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Solution

The fourth proportional to 20,219.54, 30,329.34 and 10,353.44 is: 15,530.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.54 : 30,329.34 = 10,353.44 : x
  2. Step 2: Convert to fraction form
    20,219.54/30,329.34 = 10,353.44/x
  3. Step 3: Cross multiply
    20,219.54x = 30,329.34 × 10,353.44
  4. Step 4: Simplify right side
    20,219.54x = 314,013,001.93
  5. Step 5: Solve for x
    x = 314,013,001.93/20,219.54
  6. Step 6: Final answer
    x = 15,530.18

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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.