Home / 21,183.93-29,227.77-12,682.71

Finding the Fourth Proportional to 21,183.93, 29,227.77 and 12,682.71

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Solution

The fourth proportional to 21,183.93, 29,227.77 and 12,682.71 is: 17,498.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.93 : 29,227.77 = 12,682.71 : x
  2. Step 2: Convert to fraction form
    21,183.93/29,227.77 = 12,682.71/x
  3. Step 3: Cross multiply
    21,183.93x = 29,227.77 × 12,682.71
  4. Step 4: Simplify right side
    21,183.93x = 370,687,330.86
  5. Step 5: Solve for x
    x = 370,687,330.86/21,183.93
  6. Step 6: Final answer
    x = 17,498.52

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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.