Home / 28,766.72-39,749.56-22,409.73

Finding the Fourth Proportional to 28,766.72, 39,749.56 and 22,409.73

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Solution

The fourth proportional to 28,766.72, 39,749.56 and 22,409.73 is: 30,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.72 : 39,749.56 = 22,409.73 : x
  2. Step 2: Convert to fraction form
    28,766.72/39,749.56 = 22,409.73/x
  3. Step 3: Cross multiply
    28,766.72x = 39,749.56 × 22,409.73
  4. Step 4: Simplify right side
    28,766.72x = 890,776,746.53
  5. Step 5: Solve for x
    x = 890,776,746.53/28,766.72
  6. Step 6: Final answer
    x = 30,965.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.