Home / 18,525.20-27,768.36-13,328.24

Finding the Fourth Proportional to 18,525.20, 27,768.36 and 13,328.24

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Solution

The fourth proportional to 18,525.20, 27,768.36 and 13,328.24 is: 19,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.20 : 27,768.36 = 13,328.24 : x
  2. Step 2: Convert to fraction form
    18,525.20/27,768.36 = 13,328.24/x
  3. Step 3: Cross multiply
    18,525.20x = 27,768.36 × 13,328.24
  4. Step 4: Simplify right side
    18,525.20x = 370,103,366.49
  5. Step 5: Solve for x
    x = 370,103,366.49/18,525.20
  6. Step 6: Final answer
    x = 19,978.37

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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.