Home / 21,536.46-29,717.10-12,103.20

Finding the Fourth Proportional to 21,536.46, 29,717.10 and 12,103.20

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Solution

The fourth proportional to 21,536.46, 29,717.10 and 12,103.20 is: 16,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,536.46 : 29,717.10 = 12,103.20 : x
  2. Step 2: Convert to fraction form
    21,536.46/29,717.10 = 12,103.20/x
  3. Step 3: Cross multiply
    21,536.46x = 29,717.10 × 12,103.20
  4. Step 4: Simplify right side
    21,536.46x = 359,672,004.72
  5. Step 5: Solve for x
    x = 359,672,004.72/21,536.46
  6. Step 6: Final answer
    x = 16,700.61

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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.