Home / 22,254.72-30,718.35-12,829.56

Finding the Fourth Proportional to 22,254.72, 30,718.35 and 12,829.56

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Solution

The fourth proportional to 22,254.72, 30,718.35 and 12,829.56 is: 17,708.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,254.72 : 30,718.35 = 12,829.56 : x
  2. Step 2: Convert to fraction form
    22,254.72/30,718.35 = 12,829.56/x
  3. Step 3: Cross multiply
    22,254.72x = 30,718.35 × 12,829.56
  4. Step 4: Simplify right side
    22,254.72x = 394,102,914.43
  5. Step 5: Solve for x
    x = 394,102,914.43/22,254.72
  6. Step 6: Final answer
    x = 17,708.73

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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.