Home / 31,313.29-43,216.96-19,829.25

Finding the Fourth Proportional to 31,313.29, 43,216.96 and 19,829.25

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Solution

The fourth proportional to 31,313.29, 43,216.96 and 19,829.25 is: 27,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.29 : 43,216.96 = 19,829.25 : x
  2. Step 2: Convert to fraction form
    31,313.29/43,216.96 = 19,829.25/x
  3. Step 3: Cross multiply
    31,313.29x = 43,216.96 × 19,829.25
  4. Step 4: Simplify right side
    31,313.29x = 856,959,736.30
  5. Step 5: Solve for x
    x = 856,959,736.30/31,313.29
  6. Step 6: Final answer
    x = 27,367.29

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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.