Home / 20,247.63-30,380.68-10,393.84

Finding the Fourth Proportional to 20,247.63, 30,380.68 and 10,393.84

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Solution

The fourth proportional to 20,247.63, 30,380.68 and 10,393.84 is: 15,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.63 : 30,380.68 = 10,393.84 : x
  2. Step 2: Convert to fraction form
    20,247.63/30,380.68 = 10,393.84/x
  3. Step 3: Cross multiply
    20,247.63x = 30,380.68 × 10,393.84
  4. Step 4: Simplify right side
    20,247.63x = 315,771,768.11
  5. Step 5: Solve for x
    x = 315,771,768.11/20,247.63
  6. Step 6: Final answer
    x = 15,595.49

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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.