Home / 31,365.44-43,284.37-18,621.18

Finding the Fourth Proportional to 31,365.44, 43,284.37 and 18,621.18

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Solution

The fourth proportional to 31,365.44, 43,284.37 and 18,621.18 is: 25,697.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,365.44 : 43,284.37 = 18,621.18 : x
  2. Step 2: Convert to fraction form
    31,365.44/43,284.37 = 18,621.18/x
  3. Step 3: Cross multiply
    31,365.44x = 43,284.37 × 18,621.18
  4. Step 4: Simplify right side
    31,365.44x = 806,006,044.96
  5. Step 5: Solve for x
    x = 806,006,044.96/31,365.44
  6. Step 6: Final answer
    x = 25,697.27

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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.