Home / 21,929.10-32,894.05-7,137.96

Finding the Fourth Proportional to 21,929.10, 32,894.05 and 7,137.96

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Solution

The fourth proportional to 21,929.10, 32,894.05 and 7,137.96 is: 10,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.10 : 32,894.05 = 7,137.96 : x
  2. Step 2: Convert to fraction form
    21,929.10/32,894.05 = 7,137.96/x
  3. Step 3: Cross multiply
    21,929.10x = 32,894.05 × 7,137.96
  4. Step 4: Simplify right side
    21,929.10x = 234,796,413.14
  5. Step 5: Solve for x
    x = 234,796,413.14/21,929.10
  6. Step 6: Final answer
    x = 10,707.07

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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.