Home / 30,245.10-45,319.05-19,844.70

Finding the Fourth Proportional to 30,245.10, 45,319.05 and 19,844.70

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Solution

The fourth proportional to 30,245.10, 45,319.05 and 19,844.70 is: 29,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.10 : 45,319.05 = 19,844.70 : x
  2. Step 2: Convert to fraction form
    30,245.10/45,319.05 = 19,844.70/x
  3. Step 3: Cross multiply
    30,245.10x = 45,319.05 × 19,844.70
  4. Step 4: Simplify right side
    30,245.10x = 899,342,951.54
  5. Step 5: Solve for x
    x = 899,342,951.54/30,245.10
  6. Step 6: Final answer
    x = 29,735.16

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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.