Home / 30,299.28-45,445.74-8,114.94

Finding the Fourth Proportional to 30,299.28, 45,445.74 and 8,114.94

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Solution

The fourth proportional to 30,299.28, 45,445.74 and 8,114.94 is: 12,171.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,299.28 : 45,445.74 = 8,114.94 : x
  2. Step 2: Convert to fraction form
    30,299.28/45,445.74 = 8,114.94/x
  3. Step 3: Cross multiply
    30,299.28x = 45,445.74 × 8,114.94
  4. Step 4: Simplify right side
    30,299.28x = 368,789,453.36
  5. Step 5: Solve for x
    x = 368,789,453.36/30,299.28
  6. Step 6: Final answer
    x = 12,171.56

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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.