Home / 20,421.44-28,094.09-19,546.64

Finding the Fourth Proportional to 20,421.44, 28,094.09 and 19,546.64

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Solution

The fourth proportional to 20,421.44, 28,094.09 and 19,546.64 is: 26,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421.44 : 28,094.09 = 19,546.64 : x
  2. Step 2: Convert to fraction form
    20,421.44/28,094.09 = 19,546.64/x
  3. Step 3: Cross multiply
    20,421.44x = 28,094.09 × 19,546.64
  4. Step 4: Simplify right side
    20,421.44x = 549,145,063.36
  5. Step 5: Solve for x
    x = 549,145,063.36/20,421.44
  6. Step 6: Final answer
    x = 26,890.61

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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.