Home / 28,116.94-38,801.43-16,180.03

Finding the Fourth Proportional to 28,116.94, 38,801.43 and 16,180.03

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Solution

The fourth proportional to 28,116.94, 38,801.43 and 16,180.03 is: 22,328.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.94 : 38,801.43 = 16,180.03 : x
  2. Step 2: Convert to fraction form
    28,116.94/38,801.43 = 16,180.03/x
  3. Step 3: Cross multiply
    28,116.94x = 38,801.43 × 16,180.03
  4. Step 4: Simplify right side
    28,116.94x = 627,808,301.44
  5. Step 5: Solve for x
    x = 627,808,301.44/28,116.94
  6. Step 6: Final answer
    x = 22,328.47

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Half scale
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Double scale
Find fourth proportional to 28,117.94, 38,802.81 and 16,181.03
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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.