Home / 19,478.54-29,220.64-6,147.02

Finding the Fourth Proportional to 19,478.54, 29,220.64 and 6,147.02

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Solution

The fourth proportional to 19,478.54, 29,220.64 and 6,147.02 is: 9,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.54 : 29,220.64 = 6,147.02 : x
  2. Step 2: Convert to fraction form
    19,478.54/29,220.64 = 6,147.02/x
  3. Step 3: Cross multiply
    19,478.54x = 29,220.64 × 6,147.02
  4. Step 4: Simplify right side
    19,478.54x = 179,619,858.49
  5. Step 5: Solve for x
    x = 179,619,858.49/19,478.54
  6. Step 6: Final answer
    x = 9,221.42

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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.