Home / 28,940.29-43,413-11,405.95

Finding the Fourth Proportional to 28,940.29, 43,413 and 11,405.95

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Solution

The fourth proportional to 28,940.29, 43,413 and 11,405.95 is: 17,109.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,940.29 : 43,413 = 11,405.95 : x
  2. Step 2: Convert to fraction form
    28,940.29/43,413 = 11,405.95/x
  3. Step 3: Cross multiply
    28,940.29x = 43,413 × 11,405.95
  4. Step 4: Simplify right side
    28,940.29x = 495,166,507.35
  5. Step 5: Solve for x
    x = 495,166,507.35/28,940.29
  6. Step 6: Final answer
    x = 17,109.94

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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.