Home / 28,736.44-39,654.60-15,989.20

Finding the Fourth Proportional to 28,736.44, 39,654.60 and 15,989.20

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Solution

The fourth proportional to 28,736.44, 39,654.60 and 15,989.20 is: 22,064.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.44 : 39,654.60 = 15,989.20 : x
  2. Step 2: Convert to fraction form
    28,736.44/39,654.60 = 15,989.20/x
  3. Step 3: Cross multiply
    28,736.44x = 39,654.60 × 15,989.20
  4. Step 4: Simplify right side
    28,736.44x = 634,045,330.32
  5. Step 5: Solve for x
    x = 634,045,330.32/28,736.44
  6. Step 6: Final answer
    x = 22,064.16

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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.