Home / 31,187.68-43,039.01-16,847.51

Finding the Fourth Proportional to 31,187.68, 43,039.01 and 16,847.51

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Solution

The fourth proportional to 31,187.68, 43,039.01 and 16,847.51 is: 23,249.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.68 : 43,039.01 = 16,847.51 : x
  2. Step 2: Convert to fraction form
    31,187.68/43,039.01 = 16,847.51/x
  3. Step 3: Cross multiply
    31,187.68x = 43,039.01 × 16,847.51
  4. Step 4: Simplify right side
    31,187.68x = 725,100,125.62
  5. Step 5: Solve for x
    x = 725,100,125.62/31,187.68
  6. Step 6: Final answer
    x = 23,249.57

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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.