Home / 19,692.48-27,168.76-12,622.80

Finding the Fourth Proportional to 19,692.48, 27,168.76 and 12,622.80

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Solution

The fourth proportional to 19,692.48, 27,168.76 and 12,622.80 is: 17,415.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,692.48 : 27,168.76 = 12,622.80 : x
  2. Step 2: Convert to fraction form
    19,692.48/27,168.76 = 12,622.80/x
  3. Step 3: Cross multiply
    19,692.48x = 27,168.76 × 12,622.80
  4. Step 4: Simplify right side
    19,692.48x = 342,945,823.73
  5. Step 5: Solve for x
    x = 342,945,823.73/19,692.48
  6. Step 6: Final answer
    x = 17,415.07

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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.