Home / 21,409.44-32,126.82-11,929.68

Finding the Fourth Proportional to 21,409.44, 32,126.82 and 11,929.68

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Solution

The fourth proportional to 21,409.44, 32,126.82 and 11,929.68 is: 17,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.44 : 32,126.82 = 11,929.68 : x
  2. Step 2: Convert to fraction form
    21,409.44/32,126.82 = 11,929.68/x
  3. Step 3: Cross multiply
    21,409.44x = 32,126.82 × 11,929.68
  4. Step 4: Simplify right side
    21,409.44x = 383,262,682.02
  5. Step 5: Solve for x
    x = 383,262,682.02/21,409.44
  6. Step 6: Final answer
    x = 17,901.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.