Home / 21,271.24-29,354.22-11,839.84

Finding the Fourth Proportional to 21,271.24, 29,354.22 and 11,839.84

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Solution

The fourth proportional to 21,271.24, 29,354.22 and 11,839.84 is: 16,338.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271.24 : 29,354.22 = 11,839.84 : x
  2. Step 2: Convert to fraction form
    21,271.24/29,354.22 = 11,839.84/x
  3. Step 3: Cross multiply
    21,271.24x = 29,354.22 × 11,839.84
  4. Step 4: Simplify right side
    21,271.24x = 347,549,268.12
  5. Step 5: Solve for x
    x = 347,549,268.12/21,271.24
  6. Step 6: Final answer
    x = 16,338.93

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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.