Home / 21,257.46-29,333.43-11,826.54

Finding the Fourth Proportional to 21,257.46, 29,333.43 and 11,826.54

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Solution

The fourth proportional to 21,257.46, 29,333.43 and 11,826.54 is: 16,319.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257.46 : 29,333.43 = 11,826.54 : x
  2. Step 2: Convert to fraction form
    21,257.46/29,333.43 = 11,826.54/x
  3. Step 3: Cross multiply
    21,257.46x = 29,333.43 × 11,826.54
  4. Step 4: Simplify right side
    21,257.46x = 346,912,983.23
  5. Step 5: Solve for x
    x = 346,912,983.23/21,257.46
  6. Step 6: Final answer
    x = 16,319.59

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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.