Home / 31,616.80-43,632.46-18,188.06

Finding the Fourth Proportional to 31,616.80, 43,632.46 and 18,188.06

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Solution

The fourth proportional to 31,616.80, 43,632.46 and 18,188.06 is: 25,100.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616.80 : 43,632.46 = 18,188.06 : x
  2. Step 2: Convert to fraction form
    31,616.80/43,632.46 = 18,188.06/x
  3. Step 3: Cross multiply
    31,616.80x = 43,632.46 × 18,188.06
  4. Step 4: Simplify right side
    31,616.80x = 793,589,800.43
  5. Step 5: Solve for x
    x = 793,589,800.43/31,616.80
  6. Step 6: Final answer
    x = 25,100.26

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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.