Home / 21,093.37-29,108.84-11,533.30

Finding the Fourth Proportional to 21,093.37, 29,108.84 and 11,533.30

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Solution

The fourth proportional to 21,093.37, 29,108.84 and 11,533.30 is: 15,915.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093.37 : 29,108.84 = 11,533.30 : x
  2. Step 2: Convert to fraction form
    21,093.37/29,108.84 = 11,533.30/x
  3. Step 3: Cross multiply
    21,093.37x = 29,108.84 × 11,533.30
  4. Step 4: Simplify right side
    21,093.37x = 335,720,984.37
  5. Step 5: Solve for x
    x = 335,720,984.37/21,093.37
  6. Step 6: Final answer
    x = 15,915.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.