Home / 31,664.52-43,693.26-18,240.15

Finding the Fourth Proportional to 31,664.52, 43,693.26 and 18,240.15

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Solution

The fourth proportional to 31,664.52, 43,693.26 and 18,240.15 is: 25,169.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,664.52 : 43,693.26 = 18,240.15 : x
  2. Step 2: Convert to fraction form
    31,664.52/43,693.26 = 18,240.15/x
  3. Step 3: Cross multiply
    31,664.52x = 43,693.26 × 18,240.15
  4. Step 4: Simplify right side
    31,664.52x = 796,971,616.39
  5. Step 5: Solve for x
    x = 796,971,616.39/31,664.52
  6. Step 6: Final answer
    x = 25,169.23

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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.