Home / 33,081.45-45,659.61-20,345.58

Finding the Fourth Proportional to 33,081.45, 45,659.61 and 20,345.58

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Solution

The fourth proportional to 33,081.45, 45,659.61 and 20,345.58 is: 28,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,081.45 : 45,659.61 = 20,345.58 : x
  2. Step 2: Convert to fraction form
    33,081.45/45,659.61 = 20,345.58/x
  3. Step 3: Cross multiply
    33,081.45x = 45,659.61 × 20,345.58
  4. Step 4: Simplify right side
    33,081.45x = 928,971,248.02
  5. Step 5: Solve for x
    x = 928,971,248.02/33,081.45
  6. Step 6: Final answer
    x = 28,081.33

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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.