Home / 19,228.05-28,865.48-12,208.05

Finding the Fourth Proportional to 19,228.05, 28,865.48 and 12,208.05

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Solution

The fourth proportional to 19,228.05, 28,865.48 and 12,208.05 is: 18,326.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.05 : 28,865.48 = 12,208.05 : x
  2. Step 2: Convert to fraction form
    19,228.05/28,865.48 = 12,208.05/x
  3. Step 3: Cross multiply
    19,228.05x = 28,865.48 × 12,208.05
  4. Step 4: Simplify right side
    19,228.05x = 352,391,162.07
  5. Step 5: Solve for x
    x = 352,391,162.07/19,228.05
  6. Step 6: Final answer
    x = 18,326.93

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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.