Home / 22,220.25-33,331.59-6,639.09

Finding the Fourth Proportional to 22,220.25, 33,331.59 and 6,639.09

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Solution

The fourth proportional to 22,220.25, 33,331.59 and 6,639.09 is: 9,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,220.25 : 33,331.59 = 6,639.09 : x
  2. Step 2: Convert to fraction form
    22,220.25/33,331.59 = 6,639.09/x
  3. Step 3: Cross multiply
    22,220.25x = 33,331.59 × 6,639.09
  4. Step 4: Simplify right side
    22,220.25x = 221,291,425.85
  5. Step 5: Solve for x
    x = 221,291,425.85/22,220.25
  6. Step 6: Final answer
    x = 9,959.00

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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.