Home / 38,117.56-57,173.60-11,821.62

Finding the Fourth Proportional to 38,117.56, 57,173.60 and 11,821.62

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Solution

The fourth proportional to 38,117.56, 57,173.60 and 11,821.62 is: 17,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,117.56 : 57,173.60 = 11,821.62 : x
  2. Step 2: Convert to fraction form
    38,117.56/57,173.60 = 11,821.62/x
  3. Step 3: Cross multiply
    38,117.56x = 57,173.60 × 11,821.62
  4. Step 4: Simplify right side
    38,117.56x = 675,884,589.89
  5. Step 5: Solve for x
    x = 675,884,589.89/38,117.56
  6. Step 6: Final answer
    x = 17,731.58

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1.5x scale

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.