Home / 19,720.28-29,579.58-8,033.72

Finding the Fourth Proportional to 19,720.28, 29,579.58 and 8,033.72

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Solution

The fourth proportional to 19,720.28, 29,579.58 and 8,033.72 is: 12,050.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.28 : 29,579.58 = 8,033.72 : x
  2. Step 2: Convert to fraction form
    19,720.28/29,579.58 = 8,033.72/x
  3. Step 3: Cross multiply
    19,720.28x = 29,579.58 × 8,033.72
  4. Step 4: Simplify right side
    19,720.28x = 237,634,063.44
  5. Step 5: Solve for x
    x = 237,634,063.44/19,720.28
  6. Step 6: Final answer
    x = 12,050.24

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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.