Home / 21,637.14-29,861.91-12,205.50

Finding the Fourth Proportional to 21,637.14, 29,861.91 and 12,205.50

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Solution

The fourth proportional to 21,637.14, 29,861.91 and 12,205.50 is: 16,845.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637.14 : 29,861.91 = 12,205.50 : x
  2. Step 2: Convert to fraction form
    21,637.14/29,861.91 = 12,205.50/x
  3. Step 3: Cross multiply
    21,637.14x = 29,861.91 × 12,205.50
  4. Step 4: Simplify right side
    21,637.14x = 364,479,542.51
  5. Step 5: Solve for x
    x = 364,479,542.51/21,637.14
  6. Step 6: Final answer
    x = 16,845.09

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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.