Home / 31,824.82-43,914.93-18,400.36

Finding the Fourth Proportional to 31,824.82, 43,914.93 and 18,400.36

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Solution

The fourth proportional to 31,824.82, 43,914.93 and 18,400.36 is: 25,390.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,824.82 : 43,914.93 = 18,400.36 : x
  2. Step 2: Convert to fraction form
    31,824.82/43,914.93 = 18,400.36/x
  3. Step 3: Cross multiply
    31,824.82x = 43,914.93 × 18,400.36
  4. Step 4: Simplify right side
    31,824.82x = 808,050,521.37
  5. Step 5: Solve for x
    x = 808,050,521.37/31,824.82
  6. Step 6: Final answer
    x = 25,390.58

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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.