Home / 28,121.67-38,807.93-16,187.33

Finding the Fourth Proportional to 28,121.67, 38,807.93 and 16,187.33

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Solution

The fourth proportional to 28,121.67, 38,807.93 and 16,187.33 is: 22,338.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.67 : 38,807.93 = 16,187.33 : x
  2. Step 2: Convert to fraction form
    28,121.67/38,807.93 = 16,187.33/x
  3. Step 3: Cross multiply
    28,121.67x = 38,807.93 × 16,187.33
  4. Step 4: Simplify right side
    28,121.67x = 628,196,494.55
  5. Step 5: Solve for x
    x = 628,196,494.55/28,121.67
  6. Step 6: Final answer
    x = 22,338.52

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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.