Home / 39,410.25-54,387.45-21,506.24

Finding the Fourth Proportional to 39,410.25, 54,387.45 and 21,506.24

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Solution

The fourth proportional to 39,410.25, 54,387.45 and 21,506.24 is: 29,679.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,410.25 : 54,387.45 = 21,506.24 : x
  2. Step 2: Convert to fraction form
    39,410.25/54,387.45 = 21,506.24/x
  3. Step 3: Cross multiply
    39,410.25x = 54,387.45 × 21,506.24
  4. Step 4: Simplify right side
    39,410.25x = 1,169,669,552.69
  5. Step 5: Solve for x
    x = 1,169,669,552.69/39,410.25
  6. Step 6: Final answer
    x = 29,679.32

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Double scale
Find fourth proportional to 39,411.25, 54,388.83 and 21,507.24
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.