Home / 19,920.75-29,893.74-18,050.46

Finding the Fourth Proportional to 19,920.75, 29,893.74 and 18,050.46

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Solution

The fourth proportional to 19,920.75, 29,893.74 and 18,050.46 is: 27,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.75 : 29,893.74 = 18,050.46 : x
  2. Step 2: Convert to fraction form
    19,920.75/29,893.74 = 18,050.46/x
  3. Step 3: Cross multiply
    19,920.75x = 29,893.74 × 18,050.46
  4. Step 4: Simplify right side
    19,920.75x = 539,595,518.40
  5. Step 5: Solve for x
    x = 539,595,518.40/19,920.75
  6. Step 6: Final answer
    x = 27,087.11

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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.