Home / 20,897.44-28,838.48-11,466.20

Finding the Fourth Proportional to 20,897.44, 28,838.48 and 11,466.20

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Solution

The fourth proportional to 20,897.44, 28,838.48 and 11,466.20 is: 15,823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.44 : 28,838.48 = 11,466.20 : x
  2. Step 2: Convert to fraction form
    20,897.44/28,838.48 = 11,466.20/x
  3. Step 3: Cross multiply
    20,897.44x = 28,838.48 × 11,466.20
  4. Step 4: Simplify right side
    20,897.44x = 330,667,794.14
  5. Step 5: Solve for x
    x = 330,667,794.14/20,897.44
  6. Step 6: Final answer
    x = 15,823.37

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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.