Home / 31,652.06-43,685.69-20,335.70

Finding the Fourth Proportional to 31,652.06, 43,685.69 and 20,335.70

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Solution

The fourth proportional to 31,652.06, 43,685.69 and 20,335.70 is: 28,067.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,652.06 : 43,685.69 = 20,335.70 : x
  2. Step 2: Convert to fraction form
    31,652.06/43,685.69 = 20,335.70/x
  3. Step 3: Cross multiply
    31,652.06x = 43,685.69 × 20,335.70
  4. Step 4: Simplify right side
    31,652.06x = 888,379,093.67
  5. Step 5: Solve for x
    x = 888,379,093.67/31,652.06
  6. Step 6: Final answer
    x = 28,067.02

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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.