Home / 45,225.20-67,836.74-11,947.59

Finding the Fourth Proportional to 45,225.20, 67,836.74 and 11,947.59

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Solution

The fourth proportional to 45,225.20, 67,836.74 and 11,947.59 is: 17,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,225.20 : 67,836.74 = 11,947.59 : x
  2. Step 2: Convert to fraction form
    45,225.20/67,836.74 = 11,947.59/x
  3. Step 3: Cross multiply
    45,225.20x = 67,836.74 × 11,947.59
  4. Step 4: Simplify right side
    45,225.20x = 810,485,496.72
  5. Step 5: Solve for x
    x = 810,485,496.72/45,225.20
  6. Step 6: Final answer
    x = 17,921.11

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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.