Home / 45,518.80-68,282.27-12,238.13

Finding the Fourth Proportional to 45,518.80, 68,282.27 and 12,238.13

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Solution

The fourth proportional to 45,518.80, 68,282.27 and 12,238.13 is: 18,358.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,518.80 : 68,282.27 = 12,238.13 : x
  2. Step 2: Convert to fraction form
    45,518.80/68,282.27 = 12,238.13/x
  3. Step 3: Cross multiply
    45,518.80x = 68,282.27 × 12,238.13
  4. Step 4: Simplify right side
    45,518.80x = 835,647,296.96
  5. Step 5: Solve for x
    x = 835,647,296.96/45,518.80
  6. Step 6: Final answer
    x = 18,358.29

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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.