Home / 39,419.66-54,398.36-21,514.80

Finding the Fourth Proportional to 39,419.66, 54,398.36 and 21,514.80

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Solution

The fourth proportional to 39,419.66, 54,398.36 and 21,514.80 is: 29,690.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,419.66 : 54,398.36 = 21,514.80 : x
  2. Step 2: Convert to fraction form
    39,419.66/54,398.36 = 21,514.80/x
  3. Step 3: Cross multiply
    39,419.66x = 54,398.36 × 21,514.80
  4. Step 4: Simplify right side
    39,419.66x = 1,170,369,800.43
  5. Step 5: Solve for x
    x = 1,170,369,800.43/39,419.66
  6. Step 6: Final answer
    x = 29,690.00

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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.