Home / 21,612.44-32,362.58-18,512.34

Finding the Fourth Proportional to 21,612.44, 32,362.58 and 18,512.34

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Solution

The fourth proportional to 21,612.44, 32,362.58 and 18,512.34 is: 27,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,612.44 : 32,362.58 = 18,512.34 : x
  2. Step 2: Convert to fraction form
    21,612.44/32,362.58 = 18,512.34/x
  3. Step 3: Cross multiply
    21,612.44x = 32,362.58 × 18,512.34
  4. Step 4: Simplify right side
    21,612.44x = 599,107,084.24
  5. Step 5: Solve for x
    x = 599,107,084.24/21,612.44
  6. Step 6: Final answer
    x = 27,720.47

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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.