Home / 30,326.21-41,867.54-20,271.68

Finding the Fourth Proportional to 30,326.21, 41,867.54 and 20,271.68

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Solution

The fourth proportional to 30,326.21, 41,867.54 and 20,271.68 is: 27,986.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,326.21 : 41,867.54 = 20,271.68 : x
  2. Step 2: Convert to fraction form
    30,326.21/41,867.54 = 20,271.68/x
  3. Step 3: Cross multiply
    30,326.21x = 41,867.54 × 20,271.68
  4. Step 4: Simplify right side
    30,326.21x = 848,725,271.91
  5. Step 5: Solve for x
    x = 848,725,271.91/30,326.21
  6. Step 6: Final answer
    x = 27,986.53

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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.