Home / 27,766.40-38,317.32-15,191

Finding the Fourth Proportional to 27,766.40, 38,317.32 and 15,191

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Solution

The fourth proportional to 27,766.40, 38,317.32 and 15,191 is: 20,963.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,766.40 : 38,317.32 = 15,191 : x
  2. Step 2: Convert to fraction form
    27,766.40/38,317.32 = 15,191/x
  3. Step 3: Cross multiply
    27,766.40x = 38,317.32 × 15,191
  4. Step 4: Simplify right side
    27,766.40x = 582,078,408.12
  5. Step 5: Solve for x
    x = 582,078,408.12/27,766.40
  6. Step 6: Final answer
    x = 20,963.41

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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.