Home / 20,394.88-30,574.20-7,245.52

Finding the Fourth Proportional to 20,394.88, 30,574.20 and 7,245.52

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Solution

The fourth proportional to 20,394.88, 30,574.20 and 7,245.52 is: 10,861.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394.88 : 30,574.20 = 7,245.52 : x
  2. Step 2: Convert to fraction form
    20,394.88/30,574.20 = 7,245.52/x
  3. Step 3: Cross multiply
    20,394.88x = 30,574.20 × 7,245.52
  4. Step 4: Simplify right side
    20,394.88x = 221,525,977.58
  5. Step 5: Solve for x
    x = 221,525,977.58/20,394.88
  6. Step 6: Final answer
    x = 10,861.84

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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.