Home / 20,388.33-30,547.87-9,863.33

Finding the Fourth Proportional to 20,388.33, 30,547.87 and 9,863.33

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Solution

The fourth proportional to 20,388.33, 30,547.87 and 9,863.33 is: 14,778.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.33 : 30,547.87 = 9,863.33 : x
  2. Step 2: Convert to fraction form
    20,388.33/30,547.87 = 9,863.33/x
  3. Step 3: Cross multiply
    20,388.33x = 30,547.87 × 9,863.33
  4. Step 4: Simplify right side
    20,388.33x = 301,303,545.21
  5. Step 5: Solve for x
    x = 301,303,545.21/20,388.33
  6. Step 6: Final answer
    x = 14,778.24

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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.