Home / 27,782.35-38,339.26-15,845.89

Finding the Fourth Proportional to 27,782.35, 38,339.26 and 15,845.89

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Solution

The fourth proportional to 27,782.35, 38,339.26 and 15,845.89 is: 21,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,782.35 : 38,339.26 = 15,845.89 : x
  2. Step 2: Convert to fraction form
    27,782.35/38,339.26 = 15,845.89/x
  3. Step 3: Cross multiply
    27,782.35x = 38,339.26 × 15,845.89
  4. Step 4: Simplify right side
    27,782.35x = 607,519,696.64
  5. Step 5: Solve for x
    x = 607,519,696.64/27,782.35
  6. Step 6: Final answer
    x = 21,867.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.