Home / 27,490.14-41,218.20-18,698.40

Finding the Fourth Proportional to 27,490.14, 41,218.20 and 18,698.40

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Solution

The fourth proportional to 27,490.14, 41,218.20 and 18,698.40 is: 28,036.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,490.14 : 41,218.20 = 18,698.40 : x
  2. Step 2: Convert to fraction form
    27,490.14/41,218.20 = 18,698.40/x
  3. Step 3: Cross multiply
    27,490.14x = 41,218.20 × 18,698.40
  4. Step 4: Simplify right side
    27,490.14x = 770,714,390.88
  5. Step 5: Solve for x
    x = 770,714,390.88/27,490.14
  6. Step 6: Final answer
    x = 28,036.03

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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.