Home / 13,824.30-20,749.82-13,075.05

Finding the Fourth Proportional to 13,824.30, 20,749.82 and 13,075.05

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Solution

The fourth proportional to 13,824.30, 20,749.82 and 13,075.05 is: 19,625.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.30 : 20,749.82 = 13,075.05 : x
  2. Step 2: Convert to fraction form
    13,824.30/20,749.82 = 13,075.05/x
  3. Step 3: Cross multiply
    13,824.30x = 20,749.82 × 13,075.05
  4. Step 4: Simplify right side
    13,824.30x = 271,304,868.62
  5. Step 5: Solve for x
    x = 271,304,868.62/13,824.30
  6. Step 6: Final answer
    x = 19,625.22

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1.5x scale

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.