Home / 28,467.84-42,703.31-11,829.55

Finding the Fourth Proportional to 28,467.84, 42,703.31 and 11,829.55

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Solution

The fourth proportional to 28,467.84, 42,703.31 and 11,829.55 is: 17,744.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,467.84 : 42,703.31 = 11,829.55 : x
  2. Step 2: Convert to fraction form
    28,467.84/42,703.31 = 11,829.55/x
  3. Step 3: Cross multiply
    28,467.84x = 42,703.31 × 11,829.55
  4. Step 4: Simplify right side
    28,467.84x = 505,160,940.81
  5. Step 5: Solve for x
    x = 505,160,940.81/28,467.84
  6. Step 6: Final answer
    x = 17,744.97

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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.