Home / 39,419.04-54,398.43-21,514.44

Finding the Fourth Proportional to 39,419.04, 54,398.43 and 21,514.44

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Solution

The fourth proportional to 39,419.04, 54,398.43 and 21,514.44 is: 29,690.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,419.04 : 54,398.43 = 21,514.44 : x
  2. Step 2: Convert to fraction form
    39,419.04/54,398.43 = 21,514.44/x
  3. Step 3: Cross multiply
    39,419.04x = 54,398.43 × 21,514.44
  4. Step 4: Simplify right side
    39,419.04x = 1,170,351,650.76
  5. Step 5: Solve for x
    x = 1,170,351,650.76/39,419.04
  6. Step 6: Final answer
    x = 29,690.01

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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.