Home / 45,238.14-67,856.40-18,578.34

Finding the Fourth Proportional to 45,238.14, 67,856.40 and 18,578.34

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Solution

The fourth proportional to 45,238.14, 67,856.40 and 18,578.34 is: 27,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,238.14 : 67,856.40 = 18,578.34 : x
  2. Step 2: Convert to fraction form
    45,238.14/67,856.40 = 18,578.34/x
  3. Step 3: Cross multiply
    45,238.14x = 67,856.40 × 18,578.34
  4. Step 4: Simplify right side
    45,238.14x = 1,260,659,270.38
  5. Step 5: Solve for x
    x = 1,260,659,270.38/45,238.14
  6. Step 6: Final answer
    x = 27,867.18

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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.