Home / 21,409.24-29,546.70-11,980.84

Finding the Fourth Proportional to 21,409.24, 29,546.70 and 11,980.84

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Solution

The fourth proportional to 21,409.24, 29,546.70 and 11,980.84 is: 16,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.24 : 29,546.70 = 11,980.84 : x
  2. Step 2: Convert to fraction form
    21,409.24/29,546.70 = 11,980.84/x
  3. Step 3: Cross multiply
    21,409.24x = 29,546.70 × 11,980.84
  4. Step 4: Simplify right side
    21,409.24x = 353,994,285.23
  5. Step 5: Solve for x
    x = 353,994,285.23/21,409.24
  6. Step 6: Final answer
    x = 16,534.65

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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.