Home / 28,379.02-42,494.19-20,013.73

Finding the Fourth Proportional to 28,379.02, 42,494.19 and 20,013.73

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Solution

The fourth proportional to 28,379.02, 42,494.19 and 20,013.73 is: 29,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.02 : 42,494.19 = 20,013.73 : x
  2. Step 2: Convert to fraction form
    28,379.02/42,494.19 = 20,013.73/x
  3. Step 3: Cross multiply
    28,379.02x = 42,494.19 × 20,013.73
  4. Step 4: Simplify right side
    28,379.02x = 850,467,245.23
  5. Step 5: Solve for x
    x = 850,467,245.23/28,379.02
  6. Step 6: Final answer
    x = 29,968.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.