Home / 28,163.70-38,867.79-16,227.81

Finding the Fourth Proportional to 28,163.70, 38,867.79 and 16,227.81

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Solution

The fourth proportional to 28,163.70, 38,867.79 and 16,227.81 is: 22,395.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163.70 : 38,867.79 = 16,227.81 : x
  2. Step 2: Convert to fraction form
    28,163.70/38,867.79 = 16,227.81/x
  3. Step 3: Cross multiply
    28,163.70x = 38,867.79 × 16,227.81
  4. Step 4: Simplify right side
    28,163.70x = 630,739,172.09
  5. Step 5: Solve for x
    x = 630,739,172.09/28,163.70
  6. Step 6: Final answer
    x = 22,395.47

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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.