Home / 21,719.56-32,579.34-6,137.60

Finding the Fourth Proportional to 21,719.56, 32,579.34 and 6,137.60

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Solution

The fourth proportional to 21,719.56, 32,579.34 and 6,137.60 is: 9,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.56 : 32,579.34 = 6,137.60 : x
  2. Step 2: Convert to fraction form
    21,719.56/32,579.34 = 6,137.60/x
  3. Step 3: Cross multiply
    21,719.56x = 32,579.34 × 6,137.60
  4. Step 4: Simplify right side
    21,719.56x = 199,958,957.18
  5. Step 5: Solve for x
    x = 199,958,957.18/21,719.56
  6. Step 6: Final answer
    x = 9,206.40

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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.