Home / 21,749.82-30,029.22-16,705.02

Finding the Fourth Proportional to 21,749.82, 30,029.22 and 16,705.02

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Solution

The fourth proportional to 21,749.82, 30,029.22 and 16,705.02 is: 23,064.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.82 : 30,029.22 = 16,705.02 : x
  2. Step 2: Convert to fraction form
    21,749.82/30,029.22 = 16,705.02/x
  3. Step 3: Cross multiply
    21,749.82x = 30,029.22 × 16,705.02
  4. Step 4: Simplify right side
    21,749.82x = 501,638,720.68
  5. Step 5: Solve for x
    x = 501,638,720.68/21,749.82
  6. Step 6: Final answer
    x = 23,064.04

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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.