Home / 31,441.36-43,388.36-18,692.56

Finding the Fourth Proportional to 31,441.36, 43,388.36 and 18,692.56

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Solution

The fourth proportional to 31,441.36, 43,388.36 and 18,692.56 is: 25,795.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,441.36 : 43,388.36 = 18,692.56 : x
  2. Step 2: Convert to fraction form
    31,441.36/43,388.36 = 18,692.56/x
  3. Step 3: Cross multiply
    31,441.36x = 43,388.36 × 18,692.56
  4. Step 4: Simplify right side
    31,441.36x = 811,039,522.60
  5. Step 5: Solve for x
    x = 811,039,522.60/31,441.36
  6. Step 6: Final answer
    x = 25,795.31

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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.