Home / 22,005.40-33,056.70-21,179.20

Finding the Fourth Proportional to 22,005.40, 33,056.70 and 21,179.20

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Solution

The fourth proportional to 22,005.40, 33,056.70 and 21,179.20 is: 31,815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.40 : 33,056.70 = 21,179.20 : x
  2. Step 2: Convert to fraction form
    22,005.40/33,056.70 = 21,179.20/x
  3. Step 3: Cross multiply
    22,005.40x = 33,056.70 × 21,179.20
  4. Step 4: Simplify right side
    22,005.40x = 700,114,460.64
  5. Step 5: Solve for x
    x = 700,114,460.64/22,005.40
  6. Step 6: Final answer
    x = 31,815.58

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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.