Home / 22,255.50-30,712.59-12,829.53

Finding the Fourth Proportional to 22,255.50, 30,712.59 and 12,829.53

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Solution

The fourth proportional to 22,255.50, 30,712.59 and 12,829.53 is: 17,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,255.50 : 30,712.59 = 12,829.53 : x
  2. Step 2: Convert to fraction form
    22,255.50/30,712.59 = 12,829.53/x
  3. Step 3: Cross multiply
    22,255.50x = 30,712.59 × 12,829.53
  4. Step 4: Simplify right side
    22,255.50x = 394,028,094.78
  5. Step 5: Solve for x
    x = 394,028,094.78/22,255.50
  6. Step 6: Final answer
    x = 17,704.75

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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.