Home / 33,080.95-45,658.92-20,345.09

Finding the Fourth Proportional to 33,080.95, 45,658.92 and 20,345.09

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Solution

The fourth proportional to 33,080.95, 45,658.92 and 20,345.09 is: 28,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,080.95 : 45,658.92 = 20,345.09 : x
  2. Step 2: Convert to fraction form
    33,080.95/45,658.92 = 20,345.09/x
  3. Step 3: Cross multiply
    33,080.95x = 45,658.92 × 20,345.09
  4. Step 4: Simplify right side
    33,080.95x = 928,934,608.41
  5. Step 5: Solve for x
    x = 928,934,608.41/33,080.95
  6. Step 6: Final answer
    x = 28,080.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.