Home / 19,865.54-29,788.68-11,547.96

Finding the Fourth Proportional to 19,865.54, 29,788.68 and 11,547.96

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Solution

The fourth proportional to 19,865.54, 29,788.68 and 11,547.96 is: 17,316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.54 : 29,788.68 = 11,547.96 : x
  2. Step 2: Convert to fraction form
    19,865.54/29,788.68 = 11,547.96/x
  3. Step 3: Cross multiply
    19,865.54x = 29,788.68 × 11,547.96
  4. Step 4: Simplify right side
    19,865.54x = 343,998,485.09
  5. Step 5: Solve for x
    x = 343,998,485.09/19,865.54
  6. Step 6: Final answer
    x = 17,316.34

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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.