Home / 19,529.19-29,236.19-12,109.77

Finding the Fourth Proportional to 19,529.19, 29,236.19 and 12,109.77

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Solution

The fourth proportional to 19,529.19, 29,236.19 and 12,109.77 is: 18,128.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,529.19 : 29,236.19 = 12,109.77 : x
  2. Step 2: Convert to fraction form
    19,529.19/29,236.19 = 12,109.77/x
  3. Step 3: Cross multiply
    19,529.19x = 29,236.19 × 12,109.77
  4. Step 4: Simplify right side
    19,529.19x = 354,043,476.03
  5. Step 5: Solve for x
    x = 354,043,476.03/19,529.19
  6. Step 6: Final answer
    x = 18,128.94

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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.