Home / 42,027.05-63,049.79-12,447.19

Finding the Fourth Proportional to 42,027.05, 63,049.79 and 12,447.19

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Solution

The fourth proportional to 42,027.05, 63,049.79 and 12,447.19 is: 18,673.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,027.05 : 63,049.79 = 12,447.19 : x
  2. Step 2: Convert to fraction form
    42,027.05/63,049.79 = 12,447.19/x
  3. Step 3: Cross multiply
    42,027.05x = 63,049.79 × 12,447.19
  4. Step 4: Simplify right side
    42,027.05x = 784,792,589.08
  5. Step 5: Solve for x
    x = 784,792,589.08/42,027.05
  6. Step 6: Final answer
    x = 18,673.51

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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.