Home / 21,751.05-32,639.12-11,755.82

Finding the Fourth Proportional to 21,751.05, 32,639.12 and 11,755.82

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Solution

The fourth proportional to 21,751.05, 32,639.12 and 11,755.82 is: 17,640.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.05 : 32,639.12 = 11,755.82 : x
  2. Step 2: Convert to fraction form
    21,751.05/32,639.12 = 11,755.82/x
  3. Step 3: Cross multiply
    21,751.05x = 32,639.12 × 11,755.82
  4. Step 4: Simplify right side
    21,751.05x = 383,699,397.70
  5. Step 5: Solve for x
    x = 383,699,397.70/21,751.05
  6. Step 6: Final answer
    x = 17,640.50

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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.