Home / 21,632.20-29,853.57-12,682.59

Finding the Fourth Proportional to 21,632.20, 29,853.57 and 12,682.59

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Solution

The fourth proportional to 21,632.20, 29,853.57 and 12,682.59 is: 17,502.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.20 : 29,853.57 = 12,682.59 : x
  2. Step 2: Convert to fraction form
    21,632.20/29,853.57 = 12,682.59/x
  3. Step 3: Cross multiply
    21,632.20x = 29,853.57 × 12,682.59
  4. Step 4: Simplify right side
    21,632.20x = 378,620,588.35
  5. Step 5: Solve for x
    x = 378,620,588.35/21,632.20
  6. Step 6: Final answer
    x = 17,502.64

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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.