Home / 30,450.22-45,679.90-10,725.30

Finding the Fourth Proportional to 30,450.22, 45,679.90 and 10,725.30

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Solution

The fourth proportional to 30,450.22, 45,679.90 and 10,725.30 is: 16,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450.22 : 45,679.90 = 10,725.30 : x
  2. Step 2: Convert to fraction form
    30,450.22/45,679.90 = 10,725.30/x
  3. Step 3: Cross multiply
    30,450.22x = 45,679.90 × 10,725.30
  4. Step 4: Simplify right side
    30,450.22x = 489,930,631.47
  5. Step 5: Solve for x
    x = 489,930,631.47/30,450.22
  6. Step 6: Final answer
    x = 16,089.56

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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.