Home / 31,362.60-43,282.66-20,733.80

Finding the Fourth Proportional to 31,362.60, 43,282.66 and 20,733.80

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Solution

The fourth proportional to 31,362.60, 43,282.66 and 20,733.80 is: 28,614.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.60 : 43,282.66 = 20,733.80 : x
  2. Step 2: Convert to fraction form
    31,362.60/43,282.66 = 20,733.80/x
  3. Step 3: Cross multiply
    31,362.60x = 43,282.66 × 20,733.80
  4. Step 4: Simplify right side
    31,362.60x = 897,414,015.91
  5. Step 5: Solve for x
    x = 897,414,015.91/31,362.60
  6. Step 6: Final answer
    x = 28,614.15

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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.