Home / 21,671.85-32,485.89-11,790.66

Finding the Fourth Proportional to 21,671.85, 32,485.89 and 11,790.66

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Solution

The fourth proportional to 21,671.85, 32,485.89 and 11,790.66 is: 17,674.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671.85 : 32,485.89 = 11,790.66 : x
  2. Step 2: Convert to fraction form
    21,671.85/32,485.89 = 11,790.66/x
  3. Step 3: Cross multiply
    21,671.85x = 32,485.89 × 11,790.66
  4. Step 4: Simplify right side
    21,671.85x = 383,030,083.79
  5. Step 5: Solve for x
    x = 383,030,083.79/21,671.85
  6. Step 6: Final answer
    x = 17,674.08

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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.