Home / 39,186.72-54,075.36-22,419.84

Finding the Fourth Proportional to 39,186.72, 54,075.36 and 22,419.84

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Solution

The fourth proportional to 39,186.72, 54,075.36 and 22,419.84 is: 30,938.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,186.72 : 54,075.36 = 22,419.84 : x
  2. Step 2: Convert to fraction form
    39,186.72/54,075.36 = 22,419.84/x
  3. Step 3: Cross multiply
    39,186.72x = 54,075.36 × 22,419.84
  4. Step 4: Simplify right side
    39,186.72x = 1,212,360,919.14
  5. Step 5: Solve for x
    x = 1,212,360,919.14/39,186.72
  6. Step 6: Final answer
    x = 30,938.06

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Double scale
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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.