Home / 28,936.07-43,409.52-13,142.21

Finding the Fourth Proportional to 28,936.07, 43,409.52 and 13,142.21

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Solution

The fourth proportional to 28,936.07, 43,409.52 and 13,142.21 is: 19,715.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.07 : 43,409.52 = 13,142.21 : x
  2. Step 2: Convert to fraction form
    28,936.07/43,409.52 = 13,142.21/x
  3. Step 3: Cross multiply
    28,936.07x = 43,409.52 × 13,142.21
  4. Step 4: Simplify right side
    28,936.07x = 570,497,027.84
  5. Step 5: Solve for x
    x = 570,497,027.84/28,936.07
  6. Step 6: Final answer
    x = 19,715.77

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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.