Home / 21,399.02-29,532.07-11,967.02

Finding the Fourth Proportional to 21,399.02, 29,532.07 and 11,967.02

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Solution

The fourth proportional to 21,399.02, 29,532.07 and 11,967.02 is: 16,515.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399.02 : 29,532.07 = 11,967.02 : x
  2. Step 2: Convert to fraction form
    21,399.02/29,532.07 = 11,967.02/x
  3. Step 3: Cross multiply
    21,399.02x = 29,532.07 × 11,967.02
  4. Step 4: Simplify right side
    21,399.02x = 353,410,872.33
  5. Step 5: Solve for x
    x = 353,410,872.33/21,399.02
  6. Step 6: Final answer
    x = 16,515.28

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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.