Home / 18,075.96-27,155.57-12,824.01

Finding the Fourth Proportional to 18,075.96, 27,155.57 and 12,824.01

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Solution

The fourth proportional to 18,075.96, 27,155.57 and 12,824.01 is: 19,265.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.96 : 27,155.57 = 12,824.01 : x
  2. Step 2: Convert to fraction form
    18,075.96/27,155.57 = 12,824.01/x
  3. Step 3: Cross multiply
    18,075.96x = 27,155.57 × 12,824.01
  4. Step 4: Simplify right side
    18,075.96x = 348,243,237.12
  5. Step 5: Solve for x
    x = 348,243,237.12/18,075.96
  6. Step 6: Final answer
    x = 19,265.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.