Home / 28,173-38,869.32-16,236.12

Finding the Fourth Proportional to 28,173, 38,869.32 and 16,236.12

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Solution

The fourth proportional to 28,173, 38,869.32 and 16,236.12 is: 22,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173 : 38,869.32 = 16,236.12 : x
  2. Step 2: Convert to fraction form
    28,173/38,869.32 = 16,236.12/x
  3. Step 3: Cross multiply
    28,173x = 38,869.32 × 16,236.12
  4. Step 4: Simplify right side
    28,173x = 631,086,943.84
  5. Step 5: Solve for x
    x = 631,086,943.84/28,173
  6. Step 6: Final answer
    x = 22,400.42

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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.