Home / 19,720.08-29,583.72-6,571.20

Finding the Fourth Proportional to 19,720.08, 29,583.72 and 6,571.20

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Solution

The fourth proportional to 19,720.08, 29,583.72 and 6,571.20 is: 9,858.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.08 : 29,583.72 = 6,571.20 : x
  2. Step 2: Convert to fraction form
    19,720.08/29,583.72 = 6,571.20/x
  3. Step 3: Cross multiply
    19,720.08x = 29,583.72 × 6,571.20
  4. Step 4: Simplify right side
    19,720.08x = 194,400,540.86
  5. Step 5: Solve for x
    x = 194,400,540.86/19,720.08
  6. Step 6: Final answer
    x = 9,858.00

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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.