Home / 28,647.82-39,538.02-16,717.60

Finding the Fourth Proportional to 28,647.82, 39,538.02 and 16,717.60

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Solution

The fourth proportional to 28,647.82, 39,538.02 and 16,717.60 is: 23,072.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.82 : 39,538.02 = 16,717.60 : x
  2. Step 2: Convert to fraction form
    28,647.82/39,538.02 = 16,717.60/x
  3. Step 3: Cross multiply
    28,647.82x = 39,538.02 × 16,717.60
  4. Step 4: Simplify right side
    28,647.82x = 660,980,803.15
  5. Step 5: Solve for x
    x = 660,980,803.15/28,647.82
  6. Step 6: Final answer
    x = 23,072.64

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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.