Home / 38,171.21-52,676.40-21,175.79

Finding the Fourth Proportional to 38,171.21, 52,676.40 and 21,175.79

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Solution

The fourth proportional to 38,171.21, 52,676.40 and 21,175.79 is: 29,222.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,171.21 : 52,676.40 = 21,175.79 : x
  2. Step 2: Convert to fraction form
    38,171.21/52,676.40 = 21,175.79/x
  3. Step 3: Cross multiply
    38,171.21x = 52,676.40 × 21,175.79
  4. Step 4: Simplify right side
    38,171.21x = 1,115,464,252.67
  5. Step 5: Solve for x
    x = 1,115,464,252.67/38,171.21
  6. Step 6: Final answer
    x = 29,222.66

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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.