Home / 20,380.70-30,548.60-15,367.00

Finding the Fourth Proportional to 20,380.70, 30,548.60 and 15,367.00

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Solution

The fourth proportional to 20,380.70, 30,548.60 and 15,367.00 is: 23,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.70 : 30,548.60 = 15,367.00 : x
  2. Step 2: Convert to fraction form
    20,380.70/30,548.60 = 15,367.00/x
  3. Step 3: Cross multiply
    20,380.70x = 30,548.60 × 15,367.00
  4. Step 4: Simplify right side
    20,380.70x = 469,440,298.25
  5. Step 5: Solve for x
    x = 469,440,298.25/20,380.70
  6. Step 6: Final answer
    x = 23,033.58

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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.