Home / 18,265.20-27,408.60-13,322.40

Finding the Fourth Proportional to 18,265.20, 27,408.60 and 13,322.40

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Solution

The fourth proportional to 18,265.20, 27,408.60 and 13,322.40 is: 19,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.20 : 27,408.60 = 13,322.40 : x
  2. Step 2: Convert to fraction form
    18,265.20/27,408.60 = 13,322.40/x
  3. Step 3: Cross multiply
    18,265.20x = 27,408.60 × 13,322.40
  4. Step 4: Simplify right side
    18,265.20x = 365,148,332.64
  5. Step 5: Solve for x
    x = 365,148,332.64/18,265.20
  6. Step 6: Final answer
    x = 19,991.48

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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.