Home / 27,816.40-38,387.56-15,241.12

Finding the Fourth Proportional to 27,816.40, 38,387.56 and 15,241.12

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Solution

The fourth proportional to 27,816.40, 38,387.56 and 15,241.12 is: 21,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,816.40 : 38,387.56 = 15,241.12 : x
  2. Step 2: Convert to fraction form
    27,816.40/38,387.56 = 15,241.12/x
  3. Step 3: Cross multiply
    27,816.40x = 38,387.56 × 15,241.12
  4. Step 4: Simplify right side
    27,816.40x = 585,069,408.47
  5. Step 5: Solve for x
    x = 585,069,408.47/27,816.40
  6. Step 6: Final answer
    x = 21,033.25

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Half scale
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Double scale
Find fourth proportional to 27,817.40, 38,388.94 and 15,242.12
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.