Home / 30,121.60-45,169.44-9,346.72

Finding the Fourth Proportional to 30,121.60, 45,169.44 and 9,346.72

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Solution

The fourth proportional to 30,121.60, 45,169.44 and 9,346.72 is: 14,016.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.60 : 45,169.44 = 9,346.72 : x
  2. Step 2: Convert to fraction form
    30,121.60/45,169.44 = 9,346.72/x
  3. Step 3: Cross multiply
    30,121.60x = 45,169.44 × 9,346.72
  4. Step 4: Simplify right side
    30,121.60x = 422,186,108.24
  5. Step 5: Solve for x
    x = 422,186,108.24/30,121.60
  6. Step 6: Final answer
    x = 14,016.06

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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.