Home / 22,420.37-33,630.25-7,639.59

Finding the Fourth Proportional to 22,420.37, 33,630.25 and 7,639.59

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Solution

The fourth proportional to 22,420.37, 33,630.25 and 7,639.59 is: 11,459.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.37 : 33,630.25 = 7,639.59 : x
  2. Step 2: Convert to fraction form
    22,420.37/33,630.25 = 7,639.59/x
  3. Step 3: Cross multiply
    22,420.37x = 33,630.25 × 7,639.59
  4. Step 4: Simplify right side
    22,420.37x = 256,921,321.60
  5. Step 5: Solve for x
    x = 256,921,321.60/22,420.37
  6. Step 6: Final answer
    x = 11,459.28

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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.