Home / 28,644.92-39,529.40-15,897.37

Finding the Fourth Proportional to 28,644.92, 39,529.40 and 15,897.37

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Solution

The fourth proportional to 28,644.92, 39,529.40 and 15,897.37 is: 21,938.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,644.92 : 39,529.40 = 15,897.37 : x
  2. Step 2: Convert to fraction form
    28,644.92/39,529.40 = 15,897.37/x
  3. Step 3: Cross multiply
    28,644.92x = 39,529.40 × 15,897.37
  4. Step 4: Simplify right side
    28,644.92x = 628,413,339.57
  5. Step 5: Solve for x
    x = 628,413,339.57/28,644.92
  6. Step 6: Final answer
    x = 21,938.03

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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.