Home / 20,162.86-30,250.43-10,309.06

Finding the Fourth Proportional to 20,162.86, 30,250.43 and 10,309.06

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Solution

The fourth proportional to 20,162.86, 30,250.43 and 10,309.06 is: 15,466.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.86 : 30,250.43 = 10,309.06 : x
  2. Step 2: Convert to fraction form
    20,162.86/30,250.43 = 10,309.06/x
  3. Step 3: Cross multiply
    20,162.86x = 30,250.43 × 10,309.06
  4. Step 4: Simplify right side
    20,162.86x = 311,853,346.64
  5. Step 5: Solve for x
    x = 311,853,346.64/20,162.86
  6. Step 6: Final answer
    x = 15,466.73

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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.