Home / 20,634.72-30,947.13-9,530.76

Finding the Fourth Proportional to 20,634.72, 30,947.13 and 9,530.76

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Solution

The fourth proportional to 20,634.72, 30,947.13 and 9,530.76 is: 14,293.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.72 : 30,947.13 = 9,530.76 : x
  2. Step 2: Convert to fraction form
    20,634.72/30,947.13 = 9,530.76/x
  3. Step 3: Cross multiply
    20,634.72x = 30,947.13 × 9,530.76
  4. Step 4: Simplify right side
    20,634.72x = 294,949,668.72
  5. Step 5: Solve for x
    x = 294,949,668.72/20,634.72
  6. Step 6: Final answer
    x = 14,293.85

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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.