Home / 20,438.58-30,660.27-7,292.82

Finding the Fourth Proportional to 20,438.58, 30,660.27 and 7,292.82

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Solution

The fourth proportional to 20,438.58, 30,660.27 and 7,292.82 is: 10,940.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,438.58 : 30,660.27 = 7,292.82 : x
  2. Step 2: Convert to fraction form
    20,438.58/30,660.27 = 7,292.82/x
  3. Step 3: Cross multiply
    20,438.58x = 30,660.27 × 7,292.82
  4. Step 4: Simplify right side
    20,438.58x = 223,599,830.26
  5. Step 5: Solve for x
    x = 223,599,830.26/20,438.58
  6. Step 6: Final answer
    x = 10,940.09

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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.