Home / 21,720.36-32,576.70-6,137.64

Finding the Fourth Proportional to 21,720.36, 32,576.70 and 6,137.64

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Solution

The fourth proportional to 21,720.36, 32,576.70 and 6,137.64 is: 9,205.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720.36 : 32,576.70 = 6,137.64 : x
  2. Step 2: Convert to fraction form
    21,720.36/32,576.70 = 6,137.64/x
  3. Step 3: Cross multiply
    21,720.36x = 32,576.70 × 6,137.64
  4. Step 4: Simplify right side
    21,720.36x = 199,944,056.99
  5. Step 5: Solve for x
    x = 199,944,056.99/21,720.36
  6. Step 6: Final answer
    x = 9,205.37

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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.