Home / 39,514.78-54,486.39-29,449.18

Finding the Fourth Proportional to 39,514.78, 54,486.39 and 29,449.18

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Solution

The fourth proportional to 39,514.78, 54,486.39 and 29,449.18 is: 40,607.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,514.78 : 54,486.39 = 29,449.18 : x
  2. Step 2: Convert to fraction form
    39,514.78/54,486.39 = 29,449.18/x
  3. Step 3: Cross multiply
    39,514.78x = 54,486.39 × 29,449.18
  4. Step 4: Simplify right side
    39,514.78x = 1,604,579,506.66
  5. Step 5: Solve for x
    x = 1,604,579,506.66/39,514.78
  6. Step 6: Final answer
    x = 40,607.07

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Double scale
Find fourth proportional to 39,515.78, 54,487.77 and 29,450.18
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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.