Home / 38,132.59-52,623.35-21,137.20

Finding the Fourth Proportional to 38,132.59, 52,623.35 and 21,137.20

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Solution

The fourth proportional to 38,132.59, 52,623.35 and 21,137.20 is: 29,169.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,132.59 : 52,623.35 = 21,137.20 : x
  2. Step 2: Convert to fraction form
    38,132.59/52,623.35 = 21,137.20/x
  3. Step 3: Cross multiply
    38,132.59x = 52,623.35 × 21,137.20
  4. Step 4: Simplify right side
    38,132.59x = 1,112,310,273.62
  5. Step 5: Solve for x
    x = 1,112,310,273.62/38,132.59
  6. Step 6: Final answer
    x = 29,169.54

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Half scale
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Double scale
Find fourth proportional to 38,133.59, 52,624.73 and 21,138.20
Similar ratio
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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.