Home / 20,147.49-30,192.08-11,363.72

Finding the Fourth Proportional to 20,147.49, 30,192.08 and 11,363.72

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Solution

The fourth proportional to 20,147.49, 30,192.08 and 11,363.72 is: 17,029.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.49 : 30,192.08 = 11,363.72 : x
  2. Step 2: Convert to fraction form
    20,147.49/30,192.08 = 11,363.72/x
  3. Step 3: Cross multiply
    20,147.49x = 30,192.08 × 11,363.72
  4. Step 4: Simplify right side
    20,147.49x = 343,094,135.56
  5. Step 5: Solve for x
    x = 343,094,135.56/20,147.49
  6. Step 6: Final answer
    x = 17,029.13

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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.