Home / 21,636.92-29,858.63-12,076.31

Finding the Fourth Proportional to 21,636.92, 29,858.63 and 12,076.31

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Solution

The fourth proportional to 21,636.92, 29,858.63 and 12,076.31 is: 16,665.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,636.92 : 29,858.63 = 12,076.31 : x
  2. Step 2: Convert to fraction form
    21,636.92/29,858.63 = 12,076.31/x
  3. Step 3: Cross multiply
    21,636.92x = 29,858.63 × 12,076.31
  4. Step 4: Simplify right side
    21,636.92x = 360,582,086.32
  5. Step 5: Solve for x
    x = 360,582,086.32/21,636.92
  6. Step 6: Final answer
    x = 16,665.13

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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.