Home / 39,620.07-54,676.13-21,714.69

Finding the Fourth Proportional to 39,620.07, 54,676.13 and 21,714.69

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Solution

The fourth proportional to 39,620.07, 54,676.13 and 21,714.69 is: 29,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,620.07 : 54,676.13 = 21,714.69 : x
  2. Step 2: Convert to fraction form
    39,620.07/54,676.13 = 21,714.69/x
  3. Step 3: Cross multiply
    39,620.07x = 54,676.13 × 21,714.69
  4. Step 4: Simplify right side
    39,620.07x = 1,187,275,213.35
  5. Step 5: Solve for x
    x = 1,187,275,213.35/39,620.07
  6. Step 6: Final answer
    x = 29,966.51

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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.