Home / 20,029.37-27,642.60-11,531.79

Finding the Fourth Proportional to 20,029.37, 27,642.60 and 11,531.79

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Solution

The fourth proportional to 20,029.37, 27,642.60 and 11,531.79 is: 15,915.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.37 : 27,642.60 = 11,531.79 : x
  2. Step 2: Convert to fraction form
    20,029.37/27,642.60 = 11,531.79/x
  3. Step 3: Cross multiply
    20,029.37x = 27,642.60 × 11,531.79
  4. Step 4: Simplify right side
    20,029.37x = 318,768,658.25
  5. Step 5: Solve for x
    x = 318,768,658.25/20,029.37
  6. Step 6: Final answer
    x = 15,915.07

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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.