Home / 33,081.77-45,659.96-20,345.74

Finding the Fourth Proportional to 33,081.77, 45,659.96 and 20,345.74

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Solution

The fourth proportional to 33,081.77, 45,659.96 and 20,345.74 is: 28,081.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,081.77 : 45,659.96 = 20,345.74 : x
  2. Step 2: Convert to fraction form
    33,081.77/45,659.96 = 20,345.74/x
  3. Step 3: Cross multiply
    33,081.77x = 45,659.96 × 20,345.74
  4. Step 4: Simplify right side
    33,081.77x = 928,985,674.57
  5. Step 5: Solve for x
    x = 928,985,674.57/33,081.77
  6. Step 6: Final answer
    x = 28,081.50

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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.