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Finding the Fourth Proportional to 30,624.37, 45,932.36 and 8,434.55

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Solution

The fourth proportional to 30,624.37, 45,932.36 and 8,434.55 is: 12,650.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,624.37 : 45,932.36 = 8,434.55 : x
  2. Step 2: Convert to fraction form
    30,624.37/45,932.36 = 8,434.55/x
  3. Step 3: Cross multiply
    30,624.37x = 45,932.36 × 8,434.55
  4. Step 4: Simplify right side
    30,624.37x = 387,418,859.70
  5. Step 5: Solve for x
    x = 387,418,859.70/30,624.37
  6. Step 6: Final answer
    x = 12,650.67

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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.