Home / 21,722.36-32,579.70-6,139.64

Finding the Fourth Proportional to 21,722.36, 32,579.70 and 6,139.64

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Solution

The fourth proportional to 21,722.36, 32,579.70 and 6,139.64 is: 9,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,722.36 : 32,579.70 = 6,139.64 : x
  2. Step 2: Convert to fraction form
    21,722.36/32,579.70 = 6,139.64/x
  3. Step 3: Cross multiply
    21,722.36x = 32,579.70 × 6,139.64
  4. Step 4: Simplify right side
    21,722.36x = 200,027,629.31
  5. Step 5: Solve for x
    x = 200,027,629.31/21,722.36
  6. Step 6: Final answer
    x = 9,208.37

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1.5x scale

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.