Home / 19,902.67-27,459.16-11,405.77

Finding the Fourth Proportional to 19,902.67, 27,459.16 and 11,405.77

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Solution

The fourth proportional to 19,902.67, 27,459.16 and 11,405.77 is: 15,736.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.67 : 27,459.16 = 11,405.77 : x
  2. Step 2: Convert to fraction form
    19,902.67/27,459.16 = 11,405.77/x
  3. Step 3: Cross multiply
    19,902.67x = 27,459.16 × 11,405.77
  4. Step 4: Simplify right side
    19,902.67x = 313,192,766.19
  5. Step 5: Solve for x
    x = 313,192,766.19/19,902.67
  6. Step 6: Final answer
    x = 15,736.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.