Home / 21,583.53-29,786.54-12,153.51

Finding the Fourth Proportional to 21,583.53, 29,786.54 and 12,153.51

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Solution

The fourth proportional to 21,583.53, 29,786.54 and 12,153.51 is: 16,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583.53 : 29,786.54 = 12,153.51 : x
  2. Step 2: Convert to fraction form
    21,583.53/29,786.54 = 12,153.51/x
  3. Step 3: Cross multiply
    21,583.53x = 29,786.54 × 12,153.51
  4. Step 4: Simplify right side
    21,583.53x = 362,010,950.99
  5. Step 5: Solve for x
    x = 362,010,950.99/21,583.53
  6. Step 6: Final answer
    x = 16,772.56

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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.