Home / 40,698.29-61,056.21-12,617.78

Finding the Fourth Proportional to 40,698.29, 61,056.21 and 12,617.78

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Solution

The fourth proportional to 40,698.29, 61,056.21 and 12,617.78 is: 18,929.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698.29 : 61,056.21 = 12,617.78 : x
  2. Step 2: Convert to fraction form
    40,698.29/61,056.21 = 12,617.78/x
  3. Step 3: Cross multiply
    40,698.29x = 61,056.21 × 12,617.78
  4. Step 4: Simplify right side
    40,698.29x = 770,393,825.41
  5. Step 5: Solve for x
    x = 770,393,825.41/40,698.29
  6. Step 6: Final answer
    x = 18,929.39

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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.