Home / 39,435.62-54,419.10-21,527.18

Finding the Fourth Proportional to 39,435.62, 54,419.10 and 21,527.18

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Solution

The fourth proportional to 39,435.62, 54,419.10 and 21,527.18 is: 29,706.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,435.62 : 54,419.10 = 21,527.18 : x
  2. Step 2: Convert to fraction form
    39,435.62/54,419.10 = 21,527.18/x
  3. Step 3: Cross multiply
    39,435.62x = 54,419.10 × 21,527.18
  4. Step 4: Simplify right side
    39,435.62x = 1,171,489,761.14
  5. Step 5: Solve for x
    x = 1,171,489,761.14/39,435.62
  6. Step 6: Final answer
    x = 29,706.39

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Half scale
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Double scale
Find fourth proportional to 39,436.62, 54,420.48 and 21,528.18
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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.