Home / 45,478.58-68,220.39-13,893.44

Finding the Fourth Proportional to 45,478.58, 68,220.39 and 13,893.44

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Solution

The fourth proportional to 45,478.58, 68,220.39 and 13,893.44 is: 20,840.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,478.58 : 68,220.39 = 13,893.44 : x
  2. Step 2: Convert to fraction form
    45,478.58/68,220.39 = 13,893.44/x
  3. Step 3: Cross multiply
    45,478.58x = 68,220.39 × 13,893.44
  4. Step 4: Simplify right side
    45,478.58x = 947,815,554.14
  5. Step 5: Solve for x
    x = 947,815,554.14/45,478.58
  6. Step 6: Final answer
    x = 20,840.92

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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.