Home / 21,277.63-29,361.32-11,847.07

Finding the Fourth Proportional to 21,277.63, 29,361.32 and 11,847.07

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Solution

The fourth proportional to 21,277.63, 29,361.32 and 11,847.07 is: 16,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.63 : 29,361.32 = 11,847.07 : x
  2. Step 2: Convert to fraction form
    21,277.63/29,361.32 = 11,847.07/x
  3. Step 3: Cross multiply
    21,277.63x = 29,361.32 × 11,847.07
  4. Step 4: Simplify right side
    21,277.63x = 347,845,554.10
  5. Step 5: Solve for x
    x = 347,845,554.10/21,277.63
  6. Step 6: Final answer
    x = 16,347.95

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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.