Home / 28,756.56-39,684.12-16,181.31

Finding the Fourth Proportional to 28,756.56, 39,684.12 and 16,181.31

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Solution

The fourth proportional to 28,756.56, 39,684.12 and 16,181.31 is: 22,330.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.56 : 39,684.12 = 16,181.31 : x
  2. Step 2: Convert to fraction form
    28,756.56/39,684.12 = 16,181.31/x
  3. Step 3: Cross multiply
    28,756.56x = 39,684.12 × 16,181.31
  4. Step 4: Simplify right side
    28,756.56x = 642,141,047.80
  5. Step 5: Solve for x
    x = 642,141,047.80/28,756.56
  6. Step 6: Final answer
    x = 22,330.25

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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.