Home / 30,472.91-45,710.27-8,286.76

Finding the Fourth Proportional to 30,472.91, 45,710.27 and 8,286.76

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Solution

The fourth proportional to 30,472.91, 45,710.27 and 8,286.76 is: 12,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,472.91 : 45,710.27 = 8,286.76 : x
  2. Step 2: Convert to fraction form
    30,472.91/45,710.27 = 8,286.76/x
  3. Step 3: Cross multiply
    30,472.91x = 45,710.27 × 8,286.76
  4. Step 4: Simplify right side
    30,472.91x = 378,789,873.30
  5. Step 5: Solve for x
    x = 378,789,873.30/30,472.91
  6. Step 6: Final answer
    x = 12,430.38

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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.