Home / 19,837.80-29,720.70-9,426.60

Finding the Fourth Proportional to 19,837.80, 29,720.70 and 9,426.60

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Solution

The fourth proportional to 19,837.80, 29,720.70 and 9,426.60 is: 14,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,837.80 : 29,720.70 = 9,426.60 : x
  2. Step 2: Convert to fraction form
    19,837.80/29,720.70 = 9,426.60/x
  3. Step 3: Cross multiply
    19,837.80x = 29,720.70 × 9,426.60
  4. Step 4: Simplify right side
    19,837.80x = 280,165,150.62
  5. Step 5: Solve for x
    x = 280,165,150.62/19,837.80
  6. Step 6: Final answer
    x = 14,122.79

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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.