Home / 28,208.86-38,926.78-16,271.48

Finding the Fourth Proportional to 28,208.86, 38,926.78 and 16,271.48

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Solution

The fourth proportional to 28,208.86, 38,926.78 and 16,271.48 is: 22,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.86 : 38,926.78 = 16,271.48 : x
  2. Step 2: Convert to fraction form
    28,208.86/38,926.78 = 16,271.48/x
  3. Step 3: Cross multiply
    28,208.86x = 38,926.78 × 16,271.48
  4. Step 4: Simplify right side
    28,208.86x = 633,396,378.87
  5. Step 5: Solve for x
    x = 633,396,378.87/28,208.86
  6. Step 6: Final answer
    x = 22,453.81

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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.