Home / 20,429.08-28,192.08-11,937.04

Finding the Fourth Proportional to 20,429.08, 28,192.08 and 11,937.04

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Solution

The fourth proportional to 20,429.08, 28,192.08 and 11,937.04 is: 16,473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429.08 : 28,192.08 = 11,937.04 : x
  2. Step 2: Convert to fraction form
    20,429.08/28,192.08 = 11,937.04/x
  3. Step 3: Cross multiply
    20,429.08x = 28,192.08 × 11,937.04
  4. Step 4: Simplify right side
    20,429.08x = 336,529,986.64
  5. Step 5: Solve for x
    x = 336,529,986.64/20,429.08
  6. Step 6: Final answer
    x = 16,473.09

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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.