Home / 27,166.79-40,759.06-13,128.43

Finding the Fourth Proportional to 27,166.79, 40,759.06 and 13,128.43

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Solution

The fourth proportional to 27,166.79, 40,759.06 and 13,128.43 is: 19,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,166.79 : 40,759.06 = 13,128.43 : x
  2. Step 2: Convert to fraction form
    27,166.79/40,759.06 = 13,128.43/x
  3. Step 3: Cross multiply
    27,166.79x = 40,759.06 × 13,128.43
  4. Step 4: Simplify right side
    27,166.79x = 535,102,466.08
  5. Step 5: Solve for x
    x = 535,102,466.08/27,166.79
  6. Step 6: Final answer
    x = 19,696.93

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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.