Home / 20,190.48-30,291.92-10,336.68

Finding the Fourth Proportional to 20,190.48, 30,291.92 and 10,336.68

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Solution

The fourth proportional to 20,190.48, 30,291.92 and 10,336.68 is: 15,508.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.48 : 30,291.92 = 10,336.68 : x
  2. Step 2: Convert to fraction form
    20,190.48/30,291.92 = 10,336.68/x
  3. Step 3: Cross multiply
    20,190.48x = 30,291.92 × 10,336.68
  4. Step 4: Simplify right side
    20,190.48x = 313,117,883.63
  5. Step 5: Solve for x
    x = 313,117,883.63/20,190.48
  6. Step 6: Final answer
    x = 15,508.19

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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.