Home / 30,181.80-41,644.44-18,242.76

Finding the Fourth Proportional to 30,181.80, 41,644.44 and 18,242.76

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Solution

The fourth proportional to 30,181.80, 41,644.44 and 18,242.76 is: 25,171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,181.80 : 41,644.44 = 18,242.76 : x
  2. Step 2: Convert to fraction form
    30,181.80/41,644.44 = 18,242.76/x
  3. Step 3: Cross multiply
    30,181.80x = 41,644.44 × 18,242.76
  4. Step 4: Simplify right side
    30,181.80x = 759,709,524.25
  5. Step 5: Solve for x
    x = 759,709,524.25/30,181.80
  6. Step 6: Final answer
    x = 25,171.11

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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.