Home / 27,789.63-41,671.84-11,987.19

Finding the Fourth Proportional to 27,789.63, 41,671.84 and 11,987.19

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Solution

The fourth proportional to 27,789.63, 41,671.84 and 11,987.19 is: 17,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.63 : 41,671.84 = 11,987.19 : x
  2. Step 2: Convert to fraction form
    27,789.63/41,671.84 = 11,987.19/x
  3. Step 3: Cross multiply
    27,789.63x = 41,671.84 × 11,987.19
  4. Step 4: Simplify right side
    27,789.63x = 499,528,263.73
  5. Step 5: Solve for x
    x = 499,528,263.73/27,789.63
  6. Step 6: Final answer
    x = 17,975.35

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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.