Home / 20,148.11-30,235.94-7,000.37

Finding the Fourth Proportional to 20,148.11, 30,235.94 and 7,000.37

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Solution

The fourth proportional to 20,148.11, 30,235.94 and 7,000.37 is: 10,505.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.11 : 30,235.94 = 7,000.37 : x
  2. Step 2: Convert to fraction form
    20,148.11/30,235.94 = 7,000.37/x
  3. Step 3: Cross multiply
    20,148.11x = 30,235.94 × 7,000.37
  4. Step 4: Simplify right side
    20,148.11x = 211,662,767.30
  5. Step 5: Solve for x
    x = 211,662,767.30/20,148.11
  6. Step 6: Final answer
    x = 10,505.34

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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.