Home / 19,770.60-27,296.40-11,815.32

Finding the Fourth Proportional to 19,770.60, 27,296.40 and 11,815.32

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Solution

The fourth proportional to 19,770.60, 27,296.40 and 11,815.32 is: 16,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.60 : 27,296.40 = 11,815.32 : x
  2. Step 2: Convert to fraction form
    19,770.60/27,296.40 = 11,815.32/x
  3. Step 3: Cross multiply
    19,770.60x = 27,296.40 × 11,815.32
  4. Step 4: Simplify right side
    19,770.60x = 322,515,564.37
  5. Step 5: Solve for x
    x = 322,515,564.37/19,770.60
  6. Step 6: Final answer
    x = 16,312.89

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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.