Home / 30,376.20-45,564.34-8,191.79

Finding the Fourth Proportional to 30,376.20, 45,564.34 and 8,191.79

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Solution

The fourth proportional to 30,376.20, 45,564.34 and 8,191.79 is: 12,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.20 : 45,564.34 = 8,191.79 : x
  2. Step 2: Convert to fraction form
    30,376.20/45,564.34 = 8,191.79/x
  3. Step 3: Cross multiply
    30,376.20x = 45,564.34 × 8,191.79
  4. Step 4: Simplify right side
    30,376.20x = 373,253,504.77
  5. Step 5: Solve for x
    x = 373,253,504.77/30,376.20
  6. Step 6: Final answer
    x = 12,287.70

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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.