Home / 21,185.76-29,237.48-11,754.08

Finding the Fourth Proportional to 21,185.76, 29,237.48 and 11,754.08

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Solution

The fourth proportional to 21,185.76, 29,237.48 and 11,754.08 is: 16,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.76 : 29,237.48 = 11,754.08 : x
  2. Step 2: Convert to fraction form
    21,185.76/29,237.48 = 11,754.08/x
  3. Step 3: Cross multiply
    21,185.76x = 29,237.48 × 11,754.08
  4. Step 4: Simplify right side
    21,185.76x = 343,659,678.92
  5. Step 5: Solve for x
    x = 343,659,678.92/21,185.76
  6. Step 6: Final answer
    x = 16,221.26

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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.