Home / 31,822.07-43,904.54-18,388.42

Finding the Fourth Proportional to 31,822.07, 43,904.54 and 18,388.42

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Solution

The fourth proportional to 31,822.07, 43,904.54 and 18,388.42 is: 25,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,822.07 : 43,904.54 = 18,388.42 : x
  2. Step 2: Convert to fraction form
    31,822.07/43,904.54 = 18,388.42/x
  3. Step 3: Cross multiply
    31,822.07x = 43,904.54 × 18,388.42
  4. Step 4: Simplify right side
    31,822.07x = 807,335,057.64
  5. Step 5: Solve for x
    x = 807,335,057.64/31,822.07
  6. Step 6: Final answer
    x = 25,370.29

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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.