Home / 21,976.40-32,941.36-7,181.35

Finding the Fourth Proportional to 21,976.40, 32,941.36 and 7,181.35

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Solution

The fourth proportional to 21,976.40, 32,941.36 and 7,181.35 is: 10,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,976.40 : 32,941.36 = 7,181.35 : x
  2. Step 2: Convert to fraction form
    21,976.40/32,941.36 = 7,181.35/x
  3. Step 3: Cross multiply
    21,976.40x = 32,941.36 × 7,181.35
  4. Step 4: Simplify right side
    21,976.40x = 236,563,435.64
  5. Step 5: Solve for x
    x = 236,563,435.64/21,976.40
  6. Step 6: Final answer
    x = 10,764.43

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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.