Home / 21,342.06-29,450.52-11,780.04

Finding the Fourth Proportional to 21,342.06, 29,450.52 and 11,780.04

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Solution

The fourth proportional to 21,342.06, 29,450.52 and 11,780.04 is: 16,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.06 : 29,450.52 = 11,780.04 : x
  2. Step 2: Convert to fraction form
    21,342.06/29,450.52 = 11,780.04/x
  3. Step 3: Cross multiply
    21,342.06x = 29,450.52 × 11,780.04
  4. Step 4: Simplify right side
    21,342.06x = 346,928,303.62
  5. Step 5: Solve for x
    x = 346,928,303.62/21,342.06
  6. Step 6: Final answer
    x = 16,255.61

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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.