Home / 21,665.44-29,898.51-12,713.09

Finding the Fourth Proportional to 21,665.44, 29,898.51 and 12,713.09

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Solution

The fourth proportional to 21,665.44, 29,898.51 and 12,713.09 is: 17,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,665.44 : 29,898.51 = 12,713.09 : x
  2. Step 2: Convert to fraction form
    21,665.44/29,898.51 = 12,713.09/x
  3. Step 3: Cross multiply
    21,665.44x = 29,898.51 × 12,713.09
  4. Step 4: Simplify right side
    21,665.44x = 380,102,448.50
  5. Step 5: Solve for x
    x = 380,102,448.50/21,665.44
  6. Step 6: Final answer
    x = 17,544.18

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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.