Home / 20,190.23-30,291.55-10,336.43

Finding the Fourth Proportional to 20,190.23, 30,291.55 and 10,336.43

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Solution

The fourth proportional to 20,190.23, 30,291.55 and 10,336.43 is: 15,507.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.23 : 30,291.55 = 10,336.43 : x
  2. Step 2: Convert to fraction form
    20,190.23/30,291.55 = 10,336.43/x
  3. Step 3: Cross multiply
    20,190.23x = 30,291.55 × 10,336.43
  4. Step 4: Simplify right side
    20,190.23x = 313,106,334.71
  5. Step 5: Solve for x
    x = 313,106,334.71/20,190.23
  6. Step 6: Final answer
    x = 15,507.81

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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.