Home / 21,160.44-29,203.53-11,730.82

Finding the Fourth Proportional to 21,160.44, 29,203.53 and 11,730.82

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Solution

The fourth proportional to 21,160.44, 29,203.53 and 11,730.82 is: 16,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.44 : 29,203.53 = 11,730.82 : x
  2. Step 2: Convert to fraction form
    21,160.44/29,203.53 = 11,730.82/x
  3. Step 3: Cross multiply
    21,160.44x = 29,203.53 × 11,730.82
  4. Step 4: Simplify right side
    21,160.44x = 342,581,353.79
  5. Step 5: Solve for x
    x = 342,581,353.79/21,160.44
  6. Step 6: Final answer
    x = 16,189.71

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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.