Home / 39,236.14-54,146.48-21,331.21

Finding the Fourth Proportional to 39,236.14, 54,146.48 and 21,331.21

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Solution

The fourth proportional to 39,236.14, 54,146.48 and 21,331.21 is: 29,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,236.14 : 54,146.48 = 21,331.21 : x
  2. Step 2: Convert to fraction form
    39,236.14/54,146.48 = 21,331.21/x
  3. Step 3: Cross multiply
    39,236.14x = 54,146.48 × 21,331.21
  4. Step 4: Simplify right side
    39,236.14x = 1,155,009,853.60
  5. Step 5: Solve for x
    x = 1,155,009,853.60/39,236.14
  6. Step 6: Final answer
    x = 29,437.40

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Half scale
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Double scale
Find fourth proportional to 39,237.14, 54,147.86 and 21,332.21
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.