Home / 19,778.94-29,606.49-10,985.58

Finding the Fourth Proportional to 19,778.94, 29,606.49 and 10,985.58

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Solution

The fourth proportional to 19,778.94, 29,606.49 and 10,985.58 is: 16,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.94 : 29,606.49 = 10,985.58 : x
  2. Step 2: Convert to fraction form
    19,778.94/29,606.49 = 10,985.58/x
  3. Step 3: Cross multiply
    19,778.94x = 29,606.49 × 10,985.58
  4. Step 4: Simplify right side
    19,778.94x = 325,244,464.41
  5. Step 5: Solve for x
    x = 325,244,464.41/19,778.94
  6. Step 6: Final answer
    x = 16,443.98

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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.