Home / 21,408.93-32,126.07-11,929.18

Finding the Fourth Proportional to 21,408.93, 32,126.07 and 11,929.18

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Solution

The fourth proportional to 21,408.93, 32,126.07 and 11,929.18 is: 17,900.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.93 : 32,126.07 = 11,929.18 : x
  2. Step 2: Convert to fraction form
    21,408.93/32,126.07 = 11,929.18/x
  3. Step 3: Cross multiply
    21,408.93x = 32,126.07 × 11,929.18
  4. Step 4: Simplify right side
    21,408.93x = 383,237,671.72
  5. Step 5: Solve for x
    x = 383,237,671.72/21,408.93
  6. Step 6: Final answer
    x = 17,900.83

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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.