Home / 22,122.52-30,528.84-12,692.56

Finding the Fourth Proportional to 22,122.52, 30,528.84 and 12,692.56

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Solution

The fourth proportional to 22,122.52, 30,528.84 and 12,692.56 is: 17,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.52 : 30,528.84 = 12,692.56 : x
  2. Step 2: Convert to fraction form
    22,122.52/30,528.84 = 12,692.56/x
  3. Step 3: Cross multiply
    22,122.52x = 30,528.84 × 12,692.56
  4. Step 4: Simplify right side
    22,122.52x = 387,489,133.43
  5. Step 5: Solve for x
    x = 387,489,133.43/22,122.52
  6. Step 6: Final answer
    x = 17,515.60

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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.