Home / 40,987.67-61,481.55-11,405.57

Finding the Fourth Proportional to 40,987.67, 61,481.55 and 11,405.57

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Solution

The fourth proportional to 40,987.67, 61,481.55 and 11,405.57 is: 17,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,987.67 : 61,481.55 = 11,405.57 : x
  2. Step 2: Convert to fraction form
    40,987.67/61,481.55 = 11,405.57/x
  3. Step 3: Cross multiply
    40,987.67x = 61,481.55 × 11,405.57
  4. Step 4: Simplify right side
    40,987.67x = 701,232,122.23
  5. Step 5: Solve for x
    x = 701,232,122.23/40,987.67
  6. Step 6: Final answer
    x = 17,108.37

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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.