Home / 28,543.82-39,389.50-15,797.54

Finding the Fourth Proportional to 28,543.82, 39,389.50 and 15,797.54

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Solution

The fourth proportional to 28,543.82, 39,389.50 and 15,797.54 is: 21,800.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.82 : 39,389.50 = 15,797.54 : x
  2. Step 2: Convert to fraction form
    28,543.82/39,389.50 = 15,797.54/x
  3. Step 3: Cross multiply
    28,543.82x = 39,389.50 × 15,797.54
  4. Step 4: Simplify right side
    28,543.82x = 622,257,122.84
  5. Step 5: Solve for x
    x = 622,257,122.84/28,543.82
  6. Step 6: Final answer
    x = 21,800.06

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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.