Home / 19,390.73-29,086.29-8,290.49

Finding the Fourth Proportional to 19,390.73, 29,086.29 and 8,290.49

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Solution

The fourth proportional to 19,390.73, 29,086.29 and 8,290.49 is: 12,435.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.73 : 29,086.29 = 8,290.49 : x
  2. Step 2: Convert to fraction form
    19,390.73/29,086.29 = 8,290.49/x
  3. Step 3: Cross multiply
    19,390.73x = 29,086.29 × 8,290.49
  4. Step 4: Simplify right side
    19,390.73x = 241,139,450.95
  5. Step 5: Solve for x
    x = 241,139,450.95/19,390.73
  6. Step 6: Final answer
    x = 12,435.81

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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.