Home / 19,840.20-29,768.04-8,739.08

Finding the Fourth Proportional to 19,840.20, 29,768.04 and 8,739.08

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Solution

The fourth proportional to 19,840.20, 29,768.04 and 8,739.08 is: 13,112.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.20 : 29,768.04 = 8,739.08 : x
  2. Step 2: Convert to fraction form
    19,840.20/29,768.04 = 8,739.08/x
  3. Step 3: Cross multiply
    19,840.20x = 29,768.04 × 8,739.08
  4. Step 4: Simplify right side
    19,840.20x = 260,145,283.00
  5. Step 5: Solve for x
    x = 260,145,283.00/19,840.20
  6. Step 6: Final answer
    x = 13,112.03

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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.