Home / 21,680.21-32,467.19-17,908.92

Finding the Fourth Proportional to 21,680.21, 32,467.19 and 17,908.92

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Solution

The fourth proportional to 21,680.21, 32,467.19 and 17,908.92 is: 26,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680.21 : 32,467.19 = 17,908.92 : x
  2. Step 2: Convert to fraction form
    21,680.21/32,467.19 = 17,908.92/x
  3. Step 3: Cross multiply
    21,680.21x = 32,467.19 × 17,908.92
  4. Step 4: Simplify right side
    21,680.21x = 581,452,218.79
  5. Step 5: Solve for x
    x = 581,452,218.79/21,680.21
  6. Step 6: Final answer
    x = 26,819.49

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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.