Home / 21,523.10-29,701.47-11,962.88

Finding the Fourth Proportional to 21,523.10, 29,701.47 and 11,962.88

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Solution

The fourth proportional to 21,523.10, 29,701.47 and 11,962.88 is: 16,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.10 : 29,701.47 = 11,962.88 : x
  2. Step 2: Convert to fraction form
    21,523.10/29,701.47 = 11,962.88/x
  3. Step 3: Cross multiply
    21,523.10x = 29,701.47 × 11,962.88
  4. Step 4: Simplify right side
    21,523.10x = 355,315,121.43
  5. Step 5: Solve for x
    x = 355,315,121.43/21,523.10
  6. Step 6: Final answer
    x = 16,508.55

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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.