Home / 21,097.65-29,110.55-11,664.39

Finding the Fourth Proportional to 21,097.65, 29,110.55 and 11,664.39

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Solution

The fourth proportional to 21,097.65, 29,110.55 and 11,664.39 is: 16,094.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097.65 : 29,110.55 = 11,664.39 : x
  2. Step 2: Convert to fraction form
    21,097.65/29,110.55 = 11,664.39/x
  3. Step 3: Cross multiply
    21,097.65x = 29,110.55 × 11,664.39
  4. Step 4: Simplify right side
    21,097.65x = 339,556,749.99
  5. Step 5: Solve for x
    x = 339,556,749.99/21,097.65
  6. Step 6: Final answer
    x = 16,094.53

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1.5x scale

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.