Home / 17,880.26-26,799.75-13,129.70

Finding the Fourth Proportional to 17,880.26, 26,799.75 and 13,129.70

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Solution

The fourth proportional to 17,880.26, 26,799.75 and 13,129.70 is: 19,679.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880.26 : 26,799.75 = 13,129.70 : x
  2. Step 2: Convert to fraction form
    17,880.26/26,799.75 = 13,129.70/x
  3. Step 3: Cross multiply
    17,880.26x = 26,799.75 × 13,129.70
  4. Step 4: Simplify right side
    17,880.26x = 351,872,677.58
  5. Step 5: Solve for x
    x = 351,872,677.58/17,880.26
  6. Step 6: Final answer
    x = 19,679.39

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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.