Home / 31,807.08-43,910.19-22,417.56

Finding the Fourth Proportional to 31,807.08, 43,910.19 and 22,417.56

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Solution

The fourth proportional to 31,807.08, 43,910.19 and 22,417.56 is: 30,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,807.08 : 43,910.19 = 22,417.56 : x
  2. Step 2: Convert to fraction form
    31,807.08/43,910.19 = 22,417.56/x
  3. Step 3: Cross multiply
    31,807.08x = 43,910.19 × 22,417.56
  4. Step 4: Simplify right side
    31,807.08x = 984,359,318.94
  5. Step 5: Solve for x
    x = 984,359,318.94/31,807.08
  6. Step 6: Final answer
    x = 30,947.81

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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.