Home / 28,753.36-43,128.99-13,958.30

Finding the Fourth Proportional to 28,753.36, 43,128.99 and 13,958.30

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Solution

The fourth proportional to 28,753.36, 43,128.99 and 13,958.30 is: 20,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,753.36 : 43,128.99 = 13,958.30 : x
  2. Step 2: Convert to fraction form
    28,753.36/43,128.99 = 13,958.30/x
  3. Step 3: Cross multiply
    28,753.36x = 43,128.99 × 13,958.30
  4. Step 4: Simplify right side
    28,753.36x = 602,007,488.94
  5. Step 5: Solve for x
    x = 602,007,488.94/28,753.36
  6. Step 6: Final answer
    x = 20,936.95

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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.