Home / 19,947.40-29,945.40-10,081.60

Finding the Fourth Proportional to 19,947.40, 29,945.40 and 10,081.60

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Solution

The fourth proportional to 19,947.40, 29,945.40 and 10,081.60 is: 15,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.40 : 29,945.40 = 10,081.60 : x
  2. Step 2: Convert to fraction form
    19,947.40/29,945.40 = 10,081.60/x
  3. Step 3: Cross multiply
    19,947.40x = 29,945.40 × 10,081.60
  4. Step 4: Simplify right side
    19,947.40x = 301,897,544.64
  5. Step 5: Solve for x
    x = 301,897,544.64/19,947.40
  6. Step 6: Final answer
    x = 15,134.68

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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.