Home / 38,476.72-57,710.04-12,181.60

Finding the Fourth Proportional to 38,476.72, 57,710.04 and 12,181.60

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Solution

The fourth proportional to 38,476.72, 57,710.04 and 12,181.60 is: 18,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,476.72 : 57,710.04 = 12,181.60 : x
  2. Step 2: Convert to fraction form
    38,476.72/57,710.04 = 12,181.60/x
  3. Step 3: Cross multiply
    38,476.72x = 57,710.04 × 12,181.60
  4. Step 4: Simplify right side
    38,476.72x = 703,000,623.26
  5. Step 5: Solve for x
    x = 703,000,623.26/38,476.72
  6. Step 6: Final answer
    x = 18,270.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.