Home / 21,857.90-32,786.87-6,275.52

Finding the Fourth Proportional to 21,857.90, 32,786.87 and 6,275.52

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Solution

The fourth proportional to 21,857.90, 32,786.87 and 6,275.52 is: 9,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,857.90 : 32,786.87 = 6,275.52 : x
  2. Step 2: Convert to fraction form
    21,857.90/32,786.87 = 6,275.52/x
  3. Step 3: Cross multiply
    21,857.90x = 32,786.87 × 6,275.52
  4. Step 4: Simplify right side
    21,857.90x = 205,754,627.04
  5. Step 5: Solve for x
    x = 205,754,627.04/21,857.90
  6. Step 6: Final answer
    x = 9,413.29

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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.