Home / 28,230.01-38,951.19-16,290.81

Finding the Fourth Proportional to 28,230.01, 38,951.19 and 16,290.81

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Solution

The fourth proportional to 28,230.01, 38,951.19 and 16,290.81 is: 22,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.01 : 38,951.19 = 16,290.81 : x
  2. Step 2: Convert to fraction form
    28,230.01/38,951.19 = 16,290.81/x
  3. Step 3: Cross multiply
    28,230.01x = 38,951.19 × 16,290.81
  4. Step 4: Simplify right side
    28,230.01x = 634,546,435.56
  5. Step 5: Solve for x
    x = 634,546,435.56/28,230.01
  6. Step 6: Final answer
    x = 22,477.73

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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.