Home / 17,720.51-26,544.31-12,800.03

Finding the Fourth Proportional to 17,720.51, 26,544.31 and 12,800.03

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Solution

The fourth proportional to 17,720.51, 26,544.31 and 12,800.03 is: 19,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.51 : 26,544.31 = 12,800.03 : x
  2. Step 2: Convert to fraction form
    17,720.51/26,544.31 = 12,800.03/x
  3. Step 3: Cross multiply
    17,720.51x = 26,544.31 × 12,800.03
  4. Step 4: Simplify right side
    17,720.51x = 339,767,799.61
  5. Step 5: Solve for x
    x = 339,767,799.61/17,720.51
  6. Step 6: Final answer
    x = 19,173.71

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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.