Home / 21,314.72-31,949.91-11,941.00

Finding the Fourth Proportional to 21,314.72, 31,949.91 and 11,941.00

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Solution

The fourth proportional to 21,314.72, 31,949.91 and 11,941.00 is: 17,899.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.72 : 31,949.91 = 11,941.00 : x
  2. Step 2: Convert to fraction form
    21,314.72/31,949.91 = 11,941.00/x
  3. Step 3: Cross multiply
    21,314.72x = 31,949.91 × 11,941.00
  4. Step 4: Simplify right side
    21,314.72x = 381,513,795.44
  5. Step 5: Solve for x
    x = 381,513,795.44/21,314.72
  6. Step 6: Final answer
    x = 17,899.07

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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.