Home / 21,170.08-29,214.66-12,217.24

Finding the Fourth Proportional to 21,170.08, 29,214.66 and 12,217.24

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Solution

The fourth proportional to 21,170.08, 29,214.66 and 12,217.24 is: 16,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,170.08 : 29,214.66 = 12,217.24 : x
  2. Step 2: Convert to fraction form
    21,170.08/29,214.66 = 12,217.24/x
  3. Step 3: Cross multiply
    21,170.08x = 29,214.66 × 12,217.24
  4. Step 4: Simplify right side
    21,170.08x = 356,922,512.74
  5. Step 5: Solve for x
    x = 356,922,512.74/21,170.08
  6. Step 6: Final answer
    x = 16,859.76

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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.