Home / 20,722.02-31,083.00-9,622.64

Finding the Fourth Proportional to 20,722.02, 31,083.00 and 9,622.64

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Solution

The fourth proportional to 20,722.02, 31,083.00 and 9,622.64 is: 14,433.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.02 : 31,083.00 = 9,622.64 : x
  2. Step 2: Convert to fraction form
    20,722.02/31,083.00 = 9,622.64/x
  3. Step 3: Cross multiply
    20,722.02x = 31,083.00 × 9,622.64
  4. Step 4: Simplify right side
    20,722.02x = 299,100,315.59
  5. Step 5: Solve for x
    x = 299,100,315.59/20,722.02
  6. Step 6: Final answer
    x = 14,433.94

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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.