Home / 40,784.21-61,159.00-15,819.60

Finding the Fourth Proportional to 40,784.21, 61,159.00 and 15,819.60

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Solution

The fourth proportional to 40,784.21, 61,159.00 and 15,819.60 is: 23,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,784.21 : 61,159.00 = 15,819.60 : x
  2. Step 2: Convert to fraction form
    40,784.21/61,159.00 = 15,819.60/x
  3. Step 3: Cross multiply
    40,784.21x = 61,159.00 × 15,819.60
  4. Step 4: Simplify right side
    40,784.21x = 967,511,135.86
  5. Step 5: Solve for x
    x = 967,511,135.86/40,784.21
  6. Step 6: Final answer
    x = 23,722.69

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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.