Home / 21,376.92-29,499.66-11,946.36

Finding the Fourth Proportional to 21,376.92, 29,499.66 and 11,946.36

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Solution

The fourth proportional to 21,376.92, 29,499.66 and 11,946.36 is: 16,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.92 : 29,499.66 = 11,946.36 : x
  2. Step 2: Convert to fraction form
    21,376.92/29,499.66 = 11,946.36/x
  3. Step 3: Cross multiply
    21,376.92x = 29,499.66 × 11,946.36
  4. Step 4: Simplify right side
    21,376.92x = 352,413,558.24
  5. Step 5: Solve for x
    x = 352,413,558.24/21,376.92
  6. Step 6: Final answer
    x = 16,485.70

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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.