Home / 20,934.67-28,897.44-13,863.37

Finding the Fourth Proportional to 20,934.67, 28,897.44 and 13,863.37

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Solution

The fourth proportional to 20,934.67, 28,897.44 and 13,863.37 is: 19,136.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.67 : 28,897.44 = 13,863.37 : x
  2. Step 2: Convert to fraction form
    20,934.67/28,897.44 = 13,863.37/x
  3. Step 3: Cross multiply
    20,934.67x = 28,897.44 × 13,863.37
  4. Step 4: Simplify right side
    20,934.67x = 400,615,902.77
  5. Step 5: Solve for x
    x = 400,615,902.77/20,934.67
  6. Step 6: Final answer
    x = 19,136.48

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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.