Home / 30,201.70-45,302.55-19,704.10

Finding the Fourth Proportional to 30,201.70, 45,302.55 and 19,704.10

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Solution

The fourth proportional to 30,201.70, 45,302.55 and 19,704.10 is: 29,556.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.70 : 45,302.55 = 19,704.10 : x
  2. Step 2: Convert to fraction form
    30,201.70/45,302.55 = 19,704.10/x
  3. Step 3: Cross multiply
    30,201.70x = 45,302.55 × 19,704.10
  4. Step 4: Simplify right side
    30,201.70x = 892,645,975.46
  5. Step 5: Solve for x
    x = 892,645,975.46/30,201.70
  6. Step 6: Final answer
    x = 29,556.15

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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.