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Finding the Fourth Proportional to 30,057.94, 45,091.01 and 12,523.67

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Solution

The fourth proportional to 30,057.94, 45,091.01 and 12,523.67 is: 18,787.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,057.94 : 45,091.01 = 12,523.67 : x
  2. Step 2: Convert to fraction form
    30,057.94/45,091.01 = 12,523.67/x
  3. Step 3: Cross multiply
    30,057.94x = 45,091.01 × 12,523.67
  4. Step 4: Simplify right side
    30,057.94x = 564,704,929.21
  5. Step 5: Solve for x
    x = 564,704,929.21/30,057.94
  6. Step 6: Final answer
    x = 18,787.21

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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.