Home / 27,138.21-40,674.48-13,983.40

Finding the Fourth Proportional to 27,138.21, 40,674.48 and 13,983.40

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Solution

The fourth proportional to 27,138.21, 40,674.48 and 13,983.40 is: 20,958.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.21 : 40,674.48 = 13,983.40 : x
  2. Step 2: Convert to fraction form
    27,138.21/40,674.48 = 13,983.40/x
  3. Step 3: Cross multiply
    27,138.21x = 40,674.48 × 13,983.40
  4. Step 4: Simplify right side
    27,138.21x = 568,767,523.63
  5. Step 5: Solve for x
    x = 568,767,523.63/27,138.21
  6. Step 6: Final answer
    x = 20,958.18

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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.