Home / 38,105.97-52,586.27-20,878.29

Finding the Fourth Proportional to 38,105.97, 52,586.27 and 20,878.29

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Solution

The fourth proportional to 38,105.97, 52,586.27 and 20,878.29 is: 28,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,105.97 : 52,586.27 = 20,878.29 : x
  2. Step 2: Convert to fraction form
    38,105.97/52,586.27 = 20,878.29/x
  3. Step 3: Cross multiply
    38,105.97x = 52,586.27 × 20,878.29
  4. Step 4: Simplify right side
    38,105.97x = 1,097,911,395.08
  5. Step 5: Solve for x
    x = 1,097,911,395.08/38,105.97
  6. Step 6: Final answer
    x = 28,812.06

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Half scale
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Double scale
Find fourth proportional to 38,106.97, 52,587.65 and 20,879.29
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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.