Home / 21,124.26-29,151.36-11,692.62

Finding the Fourth Proportional to 21,124.26, 29,151.36 and 11,692.62

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Solution

The fourth proportional to 21,124.26, 29,151.36 and 11,692.62 is: 16,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.26 : 29,151.36 = 11,692.62 : x
  2. Step 2: Convert to fraction form
    21,124.26/29,151.36 = 11,692.62/x
  3. Step 3: Cross multiply
    21,124.26x = 29,151.36 × 11,692.62
  4. Step 4: Simplify right side
    21,124.26x = 340,855,774.96
  5. Step 5: Solve for x
    x = 340,855,774.96/21,124.26
  6. Step 6: Final answer
    x = 16,135.75

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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.