Home / 45,282.36-67,933.12-13,694.78

Finding the Fourth Proportional to 45,282.36, 67,933.12 and 13,694.78

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Solution

The fourth proportional to 45,282.36, 67,933.12 and 13,694.78 is: 20,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,282.36 : 67,933.12 = 13,694.78 : x
  2. Step 2: Convert to fraction form
    45,282.36/67,933.12 = 13,694.78/x
  3. Step 3: Cross multiply
    45,282.36x = 67,933.12 × 13,694.78
  4. Step 4: Simplify right side
    45,282.36x = 930,329,133.11
  5. Step 5: Solve for x
    x = 930,329,133.11/45,282.36
  6. Step 6: Final answer
    x = 20,545.07

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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.