Home / 21,989.55-32,977.49-7,195.18

Finding the Fourth Proportional to 21,989.55, 32,977.49 and 7,195.18

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Solution

The fourth proportional to 21,989.55, 32,977.49 and 7,195.18 is: 10,790.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,989.55 : 32,977.49 = 7,195.18 : x
  2. Step 2: Convert to fraction form
    21,989.55/32,977.49 = 7,195.18/x
  3. Step 3: Cross multiply
    21,989.55x = 32,977.49 × 7,195.18
  4. Step 4: Simplify right side
    21,989.55x = 237,278,976.50
  5. Step 5: Solve for x
    x = 237,278,976.50/21,989.55
  6. Step 6: Final answer
    x = 10,790.53

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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.