Home / 30,399.72-45,571.74-10,667.52

Finding the Fourth Proportional to 30,399.72, 45,571.74 and 10,667.52

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Solution

The fourth proportional to 30,399.72, 45,571.74 and 10,667.52 is: 15,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,399.72 : 45,571.74 = 10,667.52 : x
  2. Step 2: Convert to fraction form
    30,399.72/45,571.74 = 10,667.52/x
  3. Step 3: Cross multiply
    30,399.72x = 45,571.74 × 10,667.52
  4. Step 4: Simplify right side
    30,399.72x = 486,137,447.88
  5. Step 5: Solve for x
    x = 486,137,447.88/30,399.72
  6. Step 6: Final answer
    x = 15,991.51

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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.