Home / 21,412.76-29,553.11-14,692.84

Finding the Fourth Proportional to 21,412.76, 29,553.11 and 14,692.84

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Solution

The fourth proportional to 21,412.76, 29,553.11 and 14,692.84 is: 20,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,412.76 : 29,553.11 = 14,692.84 : x
  2. Step 2: Convert to fraction form
    21,412.76/29,553.11 = 14,692.84/x
  3. Step 3: Cross multiply
    21,412.76x = 29,553.11 × 14,692.84
  4. Step 4: Simplify right side
    21,412.76x = 434,219,116.73
  5. Step 5: Solve for x
    x = 434,219,116.73/21,412.76
  6. Step 6: Final answer
    x = 20,278.52

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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.