Home / 39,068.19-53,914.12-21,163.14

Finding the Fourth Proportional to 39,068.19, 53,914.12 and 21,163.14

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Solution

The fourth proportional to 39,068.19, 53,914.12 and 21,163.14 is: 29,205.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,068.19 : 53,914.12 = 21,163.14 : x
  2. Step 2: Convert to fraction form
    39,068.19/53,914.12 = 21,163.14/x
  3. Step 3: Cross multiply
    39,068.19x = 53,914.12 × 21,163.14
  4. Step 4: Simplify right side
    39,068.19x = 1,140,992,016.63
  5. Step 5: Solve for x
    x = 1,140,992,016.63/39,068.19
  6. Step 6: Final answer
    x = 29,205.14

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Half scale
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Double scale
Find fourth proportional to 39,069.19, 53,915.50 and 21,164.14
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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.