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Finding the Fourth Proportional to 30,359.96, 45,535.83 and 8,174.67

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Solution

The fourth proportional to 30,359.96, 45,535.83 and 8,174.67 is: 12,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.96 : 45,535.83 = 8,174.67 : x
  2. Step 2: Convert to fraction form
    30,359.96/45,535.83 = 8,174.67/x
  3. Step 3: Cross multiply
    30,359.96x = 45,535.83 × 8,174.67
  4. Step 4: Simplify right side
    30,359.96x = 372,240,182.01
  5. Step 5: Solve for x
    x = 372,240,182.01/30,359.96
  6. Step 6: Final answer
    x = 12,260.89

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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.