Home / 23,766.40-32,860.25-20,813.95

Finding the Fourth Proportional to 23,766.40, 32,860.25 and 20,813.95

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Solution

The fourth proportional to 23,766.40, 32,860.25 and 20,813.95 is: 28,778.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,766.40 : 32,860.25 = 20,813.95 : x
  2. Step 2: Convert to fraction form
    23,766.40/32,860.25 = 20,813.95/x
  3. Step 3: Cross multiply
    23,766.40x = 32,860.25 × 20,813.95
  4. Step 4: Simplify right side
    23,766.40x = 683,951,600.49
  5. Step 5: Solve for x
    x = 683,951,600.49/23,766.40
  6. Step 6: Final answer
    x = 28,778.09

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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.