Home / 21,563.21-29,752.74-12,608.97

Finding the Fourth Proportional to 21,563.21, 29,752.74 and 12,608.97

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Solution

The fourth proportional to 21,563.21, 29,752.74 and 12,608.97 is: 17,397.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,563.21 : 29,752.74 = 12,608.97 : x
  2. Step 2: Convert to fraction form
    21,563.21/29,752.74 = 12,608.97/x
  3. Step 3: Cross multiply
    21,563.21x = 29,752.74 × 12,608.97
  4. Step 4: Simplify right side
    21,563.21x = 375,151,517.65
  5. Step 5: Solve for x
    x = 375,151,517.65/21,563.21
  6. Step 6: Final answer
    x = 17,397.76

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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.