Home / 14,640.40-21,962.20-14,179.60

Finding the Fourth Proportional to 14,640.40, 21,962.20 and 14,179.60

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Solution

The fourth proportional to 14,640.40, 21,962.20 and 14,179.60 is: 21,270.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.40 : 21,962.20 = 14,179.60 : x
  2. Step 2: Convert to fraction form
    14,640.40/21,962.20 = 14,179.60/x
  3. Step 3: Cross multiply
    14,640.40x = 21,962.20 × 14,179.60
  4. Step 4: Simplify right side
    14,640.40x = 311,415,211.12
  5. Step 5: Solve for x
    x = 311,415,211.12/14,640.40
  6. Step 6: Final answer
    x = 21,270.95

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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.