Home / 38,906.36-58,368.78-12,611.12

Finding the Fourth Proportional to 38,906.36, 58,368.78 and 12,611.12

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Solution

The fourth proportional to 38,906.36, 58,368.78 and 12,611.12 is: 18,919.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,906.36 : 58,368.78 = 12,611.12 : x
  2. Step 2: Convert to fraction form
    38,906.36/58,368.78 = 12,611.12/x
  3. Step 3: Cross multiply
    38,906.36x = 58,368.78 × 12,611.12
  4. Step 4: Simplify right side
    38,906.36x = 736,095,688.83
  5. Step 5: Solve for x
    x = 736,095,688.83/38,906.36
  6. Step 6: Final answer
    x = 18,919.68

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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.