Home / 21,635.51-29,857.23-12,076.30

Finding the Fourth Proportional to 21,635.51, 29,857.23 and 12,076.30

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Solution

The fourth proportional to 21,635.51, 29,857.23 and 12,076.30 is: 16,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,635.51 : 29,857.23 = 12,076.30 : x
  2. Step 2: Convert to fraction form
    21,635.51/29,857.23 = 12,076.30/x
  3. Step 3: Cross multiply
    21,635.51x = 29,857.23 × 12,076.30
  4. Step 4: Simplify right side
    21,635.51x = 360,564,866.65
  5. Step 5: Solve for x
    x = 360,564,866.65/21,635.51
  6. Step 6: Final answer
    x = 16,665.42

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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.