Home / 21,440.70-32,112.45-12,692.70

Finding the Fourth Proportional to 21,440.70, 32,112.45 and 12,692.70

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Solution

The fourth proportional to 21,440.70, 32,112.45 and 12,692.70 is: 19,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.70 : 32,112.45 = 12,692.70 : x
  2. Step 2: Convert to fraction form
    21,440.70/32,112.45 = 12,692.70/x
  3. Step 3: Cross multiply
    21,440.70x = 32,112.45 × 12,692.70
  4. Step 4: Simplify right side
    21,440.70x = 407,593,694.12
  5. Step 5: Solve for x
    x = 407,593,694.12/21,440.70
  6. Step 6: Final answer
    x = 19,010.28

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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.