Home / 21,986.55-32,981.22-8,837.10

Finding the Fourth Proportional to 21,986.55, 32,981.22 and 8,837.10

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Solution

The fourth proportional to 21,986.55, 32,981.22 and 8,837.10 is: 13,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.55 : 32,981.22 = 8,837.10 : x
  2. Step 2: Convert to fraction form
    21,986.55/32,981.22 = 8,837.10/x
  3. Step 3: Cross multiply
    21,986.55x = 32,981.22 × 8,837.10
  4. Step 4: Simplify right side
    21,986.55x = 291,458,339.26
  5. Step 5: Solve for x
    x = 291,458,339.26/21,986.55
  6. Step 6: Final answer
    x = 13,256.21

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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.