Home / 19,478.75-29,207.72-10,109.33

Finding the Fourth Proportional to 19,478.75, 29,207.72 and 10,109.33

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Solution

The fourth proportional to 19,478.75, 29,207.72 and 10,109.33 is: 15,158.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.75 : 29,207.72 = 10,109.33 : x
  2. Step 2: Convert to fraction form
    19,478.75/29,207.72 = 10,109.33/x
  3. Step 3: Cross multiply
    19,478.75x = 29,207.72 × 10,109.33
  4. Step 4: Simplify right side
    19,478.75x = 295,270,283.44
  5. Step 5: Solve for x
    x = 295,270,283.44/19,478.75
  6. Step 6: Final answer
    x = 15,158.59

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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.