Home / 23,085.90-34,629.93-11,985.57

Finding the Fourth Proportional to 23,085.90, 34,629.93 and 11,985.57

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Solution

The fourth proportional to 23,085.90, 34,629.93 and 11,985.57 is: 17,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,085.90 : 34,629.93 = 11,985.57 : x
  2. Step 2: Convert to fraction form
    23,085.90/34,629.93 = 11,985.57/x
  3. Step 3: Cross multiply
    23,085.90x = 34,629.93 × 11,985.57
  4. Step 4: Simplify right side
    23,085.90x = 415,059,450.11
  5. Step 5: Solve for x
    x = 415,059,450.11/23,085.90
  6. Step 6: Final answer
    x = 17,978.92

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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.