Home / 28,772.86-39,692.79-22,355.53

Finding the Fourth Proportional to 28,772.86, 39,692.79 and 22,355.53

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Solution

The fourth proportional to 28,772.86, 39,692.79 and 22,355.53 is: 30,839.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772.86 : 39,692.79 = 22,355.53 : x
  2. Step 2: Convert to fraction form
    28,772.86/39,692.79 = 22,355.53/x
  3. Step 3: Cross multiply
    28,772.86x = 39,692.79 × 22,355.53
  4. Step 4: Simplify right side
    28,772.86x = 887,353,512.75
  5. Step 5: Solve for x
    x = 887,353,512.75/28,772.86
  6. Step 6: Final answer
    x = 30,839.95

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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.