Home / 30,144.60-41,595.84-18,208.80

Finding the Fourth Proportional to 30,144.60, 41,595.84 and 18,208.80

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Solution

The fourth proportional to 30,144.60, 41,595.84 and 18,208.80 is: 25,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,144.60 : 41,595.84 = 18,208.80 : x
  2. Step 2: Convert to fraction form
    30,144.60/41,595.84 = 18,208.80/x
  3. Step 3: Cross multiply
    30,144.60x = 41,595.84 × 18,208.80
  4. Step 4: Simplify right side
    30,144.60x = 757,410,331.39
  5. Step 5: Solve for x
    x = 757,410,331.39/30,144.60
  6. Step 6: Final answer
    x = 25,125.90

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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.