Home / 30,091.08-45,147.42-13,449.72

Finding the Fourth Proportional to 30,091.08, 45,147.42 and 13,449.72

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Solution

The fourth proportional to 30,091.08, 45,147.42 and 13,449.72 is: 20,179.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,091.08 : 45,147.42 = 13,449.72 : x
  2. Step 2: Convert to fraction form
    30,091.08/45,147.42 = 13,449.72/x
  3. Step 3: Cross multiply
    30,091.08x = 45,147.42 × 13,449.72
  4. Step 4: Simplify right side
    30,091.08x = 607,220,157.72
  5. Step 5: Solve for x
    x = 607,220,157.72/30,091.08
  6. Step 6: Final answer
    x = 20,179.41

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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.