Home / 28,118.17-38,804.75-16,181.25

Finding the Fourth Proportional to 28,118.17, 38,804.75 and 16,181.25

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Solution

The fourth proportional to 28,118.17, 38,804.75 and 16,181.25 is: 22,331.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.17 : 38,804.75 = 16,181.25 : x
  2. Step 2: Convert to fraction form
    28,118.17/38,804.75 = 16,181.25/x
  3. Step 3: Cross multiply
    28,118.17x = 38,804.75 × 16,181.25
  4. Step 4: Simplify right side
    28,118.17x = 627,909,360.94
  5. Step 5: Solve for x
    x = 627,909,360.94/28,118.17
  6. Step 6: Final answer
    x = 22,331.09

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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.