Home / 21,481.72-29,647.56-12,053.32

Finding the Fourth Proportional to 21,481.72, 29,647.56 and 12,053.32

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Solution

The fourth proportional to 21,481.72, 29,647.56 and 12,053.32 is: 16,635.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.72 : 29,647.56 = 12,053.32 : x
  2. Step 2: Convert to fraction form
    21,481.72/29,647.56 = 12,053.32/x
  3. Step 3: Cross multiply
    21,481.72x = 29,647.56 × 12,053.32
  4. Step 4: Simplify right side
    21,481.72x = 357,351,527.90
  5. Step 5: Solve for x
    x = 357,351,527.90/21,481.72
  6. Step 6: Final answer
    x = 16,635.15

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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.