Home / 20,429.53-28,192.58-11,476.84

Finding the Fourth Proportional to 20,429.53, 28,192.58 and 11,476.84

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Solution

The fourth proportional to 20,429.53, 28,192.58 and 11,476.84 is: 15,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429.53 : 28,192.58 = 11,476.84 : x
  2. Step 2: Convert to fraction form
    20,429.53/28,192.58 = 11,476.84/x
  3. Step 3: Cross multiply
    20,429.53x = 28,192.58 × 11,476.84
  4. Step 4: Simplify right side
    20,429.53x = 323,561,601.98
  5. Step 5: Solve for x
    x = 323,561,601.98/20,429.53
  6. Step 6: Final answer
    x = 15,837.94

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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.