Home / 19,286.39-28,940.52-7,607.81

Finding the Fourth Proportional to 19,286.39, 28,940.52 and 7,607.81

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Solution

The fourth proportional to 19,286.39, 28,940.52 and 7,607.81 is: 11,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.39 : 28,940.52 = 7,607.81 : x
  2. Step 2: Convert to fraction form
    19,286.39/28,940.52 = 7,607.81/x
  3. Step 3: Cross multiply
    19,286.39x = 28,940.52 × 7,607.81
  4. Step 4: Simplify right side
    19,286.39x = 220,173,977.46
  5. Step 5: Solve for x
    x = 220,173,977.46/19,286.39
  6. Step 6: Final answer
    x = 11,416.03

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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.