Home / 23,135.36-31,945.20-21,366.32

Finding the Fourth Proportional to 23,135.36, 31,945.20 and 21,366.32

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Solution

The fourth proportional to 23,135.36, 31,945.20 and 21,366.32 is: 29,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,135.36 : 31,945.20 = 21,366.32 : x
  2. Step 2: Convert to fraction form
    23,135.36/31,945.20 = 21,366.32/x
  3. Step 3: Cross multiply
    23,135.36x = 31,945.20 × 21,366.32
  4. Step 4: Simplify right side
    23,135.36x = 682,551,365.66
  5. Step 5: Solve for x
    x = 682,551,365.66/23,135.36
  6. Step 6: Final answer
    x = 29,502.52

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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.