Home / 21,977.02-32,969.78-7,181.96

Finding the Fourth Proportional to 21,977.02, 32,969.78 and 7,181.96

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Solution

The fourth proportional to 21,977.02, 32,969.78 and 7,181.96 is: 10,774.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.02 : 32,969.78 = 7,181.96 : x
  2. Step 2: Convert to fraction form
    21,977.02/32,969.78 = 7,181.96/x
  3. Step 3: Cross multiply
    21,977.02x = 32,969.78 × 7,181.96
  4. Step 4: Simplify right side
    21,977.02x = 236,787,641.17
  5. Step 5: Solve for x
    x = 236,787,641.17/21,977.02
  6. Step 6: Final answer
    x = 10,774.33

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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.