Home / 21,094.84-31,617.66-11,730.37

Finding the Fourth Proportional to 21,094.84, 31,617.66 and 11,730.37

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Solution

The fourth proportional to 21,094.84, 31,617.66 and 11,730.37 is: 17,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094.84 : 31,617.66 = 11,730.37 : x
  2. Step 2: Convert to fraction form
    21,094.84/31,617.66 = 11,730.37/x
  3. Step 3: Cross multiply
    21,094.84x = 31,617.66 × 11,730.37
  4. Step 4: Simplify right side
    21,094.84x = 370,886,850.33
  5. Step 5: Solve for x
    x = 370,886,850.33/21,094.84
  6. Step 6: Final answer
    x = 17,581.88

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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.