Home / 31,693.86-43,697.79-20,343.33

Finding the Fourth Proportional to 31,693.86, 43,697.79 and 20,343.33

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Solution

The fourth proportional to 31,693.86, 43,697.79 and 20,343.33 is: 28,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,693.86 : 43,697.79 = 20,343.33 : x
  2. Step 2: Convert to fraction form
    31,693.86/43,697.79 = 20,343.33/x
  3. Step 3: Cross multiply
    31,693.86x = 43,697.79 × 20,343.33
  4. Step 4: Simplify right side
    31,693.86x = 888,958,562.24
  5. Step 5: Solve for x
    x = 888,958,562.24/31,693.86
  6. Step 6: Final answer
    x = 28,048.29

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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.