Home / 28,623-42,936.66-10,155

Finding the Fourth Proportional to 28,623, 42,936.66 and 10,155

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Solution

The fourth proportional to 28,623, 42,936.66 and 10,155 is: 15,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623 : 42,936.66 = 10,155 : x
  2. Step 2: Convert to fraction form
    28,623/42,936.66 = 10,155/x
  3. Step 3: Cross multiply
    28,623x = 42,936.66 × 10,155
  4. Step 4: Simplify right side
    28,623x = 436,021,782.30
  5. Step 5: Solve for x
    x = 436,021,782.30/28,623
  6. Step 6: Final answer
    x = 15,233.27

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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.