Home / 20,578.33-30,856.99-9,475.39

Finding the Fourth Proportional to 20,578.33, 30,856.99 and 9,475.39

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Solution

The fourth proportional to 20,578.33, 30,856.99 and 9,475.39 is: 14,208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.33 : 30,856.99 = 9,475.39 : x
  2. Step 2: Convert to fraction form
    20,578.33/30,856.99 = 9,475.39/x
  3. Step 3: Cross multiply
    20,578.33x = 30,856.99 × 9,475.39
  4. Step 4: Simplify right side
    20,578.33x = 292,382,014.48
  5. Step 5: Solve for x
    x = 292,382,014.48/20,578.33
  6. Step 6: Final answer
    x = 14,208.25

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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.