Home / 20,573.38-30,909.30-13,192.30

Finding the Fourth Proportional to 20,573.38, 30,909.30 and 13,192.30

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Solution

The fourth proportional to 20,573.38, 30,909.30 and 13,192.30 is: 19,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.38 : 30,909.30 = 13,192.30 : x
  2. Step 2: Convert to fraction form
    20,573.38/30,909.30 = 13,192.30/x
  3. Step 3: Cross multiply
    20,573.38x = 30,909.30 × 13,192.30
  4. Step 4: Simplify right side
    20,573.38x = 407,764,758.39
  5. Step 5: Solve for x
    x = 407,764,758.39/20,573.38
  6. Step 6: Final answer
    x = 19,820.02

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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.