Home / 28,644.09-39,529.17-15,897.48

Finding the Fourth Proportional to 28,644.09, 39,529.17 and 15,897.48

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Solution

The fourth proportional to 28,644.09, 39,529.17 and 15,897.48 is: 21,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,644.09 : 39,529.17 = 15,897.48 : x
  2. Step 2: Convert to fraction form
    28,644.09/39,529.17 = 15,897.48/x
  3. Step 3: Cross multiply
    28,644.09x = 39,529.17 × 15,897.48
  4. Step 4: Simplify right side
    28,644.09x = 628,414,189.49
  5. Step 5: Solve for x
    x = 628,414,189.49/28,644.09
  6. Step 6: Final answer
    x = 21,938.70

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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.