Home / 39,514.07-54,529.40-21,609.09

Finding the Fourth Proportional to 39,514.07, 54,529.40 and 21,609.09

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Solution

The fourth proportional to 39,514.07, 54,529.40 and 21,609.09 is: 29,820.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,514.07 : 54,529.40 = 21,609.09 : x
  2. Step 2: Convert to fraction form
    39,514.07/54,529.40 = 21,609.09/x
  3. Step 3: Cross multiply
    39,514.07x = 54,529.40 × 21,609.09
  4. Step 4: Simplify right side
    39,514.07x = 1,178,330,712.25
  5. Step 5: Solve for x
    x = 1,178,330,712.25/39,514.07
  6. Step 6: Final answer
    x = 29,820.54

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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.