Home / 21,448.14-32,164.65-8,961.63

Finding the Fourth Proportional to 21,448.14, 32,164.65 and 8,961.63

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Solution

The fourth proportional to 21,448.14, 32,164.65 and 8,961.63 is: 13,439.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.14 : 32,164.65 = 8,961.63 : x
  2. Step 2: Convert to fraction form
    21,448.14/32,164.65 = 8,961.63/x
  3. Step 3: Cross multiply
    21,448.14x = 32,164.65 × 8,961.63
  4. Step 4: Simplify right side
    21,448.14x = 288,247,692.38
  5. Step 5: Solve for x
    x = 288,247,692.38/21,448.14
  6. Step 6: Final answer
    x = 13,439.29

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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.