Home / 22,121.84-33,181.56-8,970.68

Finding the Fourth Proportional to 22,121.84, 33,181.56 and 8,970.68

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Solution

The fourth proportional to 22,121.84, 33,181.56 and 8,970.68 is: 13,455.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.84 : 33,181.56 = 8,970.68 : x
  2. Step 2: Convert to fraction form
    22,121.84/33,181.56 = 8,970.68/x
  3. Step 3: Cross multiply
    22,121.84x = 33,181.56 × 8,970.68
  4. Step 4: Simplify right side
    22,121.84x = 297,661,156.66
  5. Step 5: Solve for x
    x = 297,661,156.66/22,121.84
  6. Step 6: Final answer
    x = 13,455.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.