Home / 21,969.03-32,975.41-12,112.95

Finding the Fourth Proportional to 21,969.03, 32,975.41 and 12,112.95

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Solution

The fourth proportional to 21,969.03, 32,975.41 and 12,112.95 is: 18,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969.03 : 32,975.41 = 12,112.95 : x
  2. Step 2: Convert to fraction form
    21,969.03/32,975.41 = 12,112.95/x
  3. Step 3: Cross multiply
    21,969.03x = 32,975.41 × 12,112.95
  4. Step 4: Simplify right side
    21,969.03x = 399,429,492.56
  5. Step 5: Solve for x
    x = 399,429,492.56/21,969.03
  6. Step 6: Final answer
    x = 18,181.48

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1.5x scale

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.