Home / 21,097.10-31,645.74-11,751.32

Finding the Fourth Proportional to 21,097.10, 31,645.74 and 11,751.32

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Solution

The fourth proportional to 21,097.10, 31,645.74 and 11,751.32 is: 17,627.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097.10 : 31,645.74 = 11,751.32 : x
  2. Step 2: Convert to fraction form
    21,097.10/31,645.74 = 11,751.32/x
  3. Step 3: Cross multiply
    21,097.10x = 31,645.74 × 11,751.32
  4. Step 4: Simplify right side
    21,097.10x = 371,879,217.38
  5. Step 5: Solve for x
    x = 371,879,217.38/21,097.10
  6. Step 6: Final answer
    x = 17,627.03

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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.