Home / 28,116.06-38,802-16,179.18

Finding the Fourth Proportional to 28,116.06, 38,802 and 16,179.18

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Solution

The fourth proportional to 28,116.06, 38,802 and 16,179.18 is: 22,328.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.06 : 38,802 = 16,179.18 : x
  2. Step 2: Convert to fraction form
    28,116.06/38,802 = 16,179.18/x
  3. Step 3: Cross multiply
    28,116.06x = 38,802 × 16,179.18
  4. Step 4: Simplify right side
    28,116.06x = 627,784,542.36
  5. Step 5: Solve for x
    x = 627,784,542.36/28,116.06
  6. Step 6: Final answer
    x = 22,328.33

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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.