Home / 21,261.67-29,340.30-11,830.03

Finding the Fourth Proportional to 21,261.67, 29,340.30 and 11,830.03

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Solution

The fourth proportional to 21,261.67, 29,340.30 and 11,830.03 is: 16,324.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261.67 : 29,340.30 = 11,830.03 : x
  2. Step 2: Convert to fraction form
    21,261.67/29,340.30 = 11,830.03/x
  3. Step 3: Cross multiply
    21,261.67x = 29,340.30 × 11,830.03
  4. Step 4: Simplify right side
    21,261.67x = 347,096,629.21
  5. Step 5: Solve for x
    x = 347,096,629.21/21,261.67
  6. Step 6: Final answer
    x = 16,324.99

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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.