Home / 22,455.50-30,962.97-16,780.70

Finding the Fourth Proportional to 22,455.50, 30,962.97 and 16,780.70

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Solution

The fourth proportional to 22,455.50, 30,962.97 and 16,780.70 is: 23,138.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.50 : 30,962.97 = 16,780.70 : x
  2. Step 2: Convert to fraction form
    22,455.50/30,962.97 = 16,780.70/x
  3. Step 3: Cross multiply
    22,455.50x = 30,962.97 × 16,780.70
  4. Step 4: Simplify right side
    22,455.50x = 519,580,388.09
  5. Step 5: Solve for x
    x = 519,580,388.09/22,455.50
  6. Step 6: Final answer
    x = 23,138.23

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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.