Home / 30,202.45-45,288.99-12,667.57

Finding the Fourth Proportional to 30,202.45, 45,288.99 and 12,667.57

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Solution

The fourth proportional to 30,202.45, 45,288.99 and 12,667.57 is: 18,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,202.45 : 45,288.99 = 12,667.57 : x
  2. Step 2: Convert to fraction form
    30,202.45/45,288.99 = 12,667.57/x
  3. Step 3: Cross multiply
    30,202.45x = 45,288.99 × 12,667.57
  4. Step 4: Simplify right side
    30,202.45x = 573,701,451.05
  5. Step 5: Solve for x
    x = 573,701,451.05/30,202.45
  6. Step 6: Final answer
    x = 18,995.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.