Home / 20,469.40-30,704.10-15,548.65

Finding the Fourth Proportional to 20,469.40, 30,704.10 and 15,548.65

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Solution

The fourth proportional to 20,469.40, 30,704.10 and 15,548.65 is: 23,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469.40 : 30,704.10 = 15,548.65 : x
  2. Step 2: Convert to fraction form
    20,469.40/30,704.10 = 15,548.65/x
  3. Step 3: Cross multiply
    20,469.40x = 30,704.10 × 15,548.65
  4. Step 4: Simplify right side
    20,469.40x = 477,407,304.47
  5. Step 5: Solve for x
    x = 477,407,304.47/20,469.40
  6. Step 6: Final answer
    x = 23,322.98

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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.