Home / 27,212.20-40,818.30-20,300.20

Finding the Fourth Proportional to 27,212.20, 40,818.30 and 20,300.20

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Solution

The fourth proportional to 27,212.20, 40,818.30 and 20,300.20 is: 30,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,212.20 : 40,818.30 = 20,300.20 : x
  2. Step 2: Convert to fraction form
    27,212.20/40,818.30 = 20,300.20/x
  3. Step 3: Cross multiply
    27,212.20x = 40,818.30 × 20,300.20
  4. Step 4: Simplify right side
    27,212.20x = 828,619,653.66
  5. Step 5: Solve for x
    x = 828,619,653.66/27,212.20
  6. Step 6: Final answer
    x = 30,450.30

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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.