Home / 22,420.38-33,630.26-7,639.60

Finding the Fourth Proportional to 22,420.38, 33,630.26 and 7,639.60

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Solution

The fourth proportional to 22,420.38, 33,630.26 and 7,639.60 is: 11,459.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.38 : 33,630.26 = 7,639.60 : x
  2. Step 2: Convert to fraction form
    22,420.38/33,630.26 = 7,639.60/x
  3. Step 3: Cross multiply
    22,420.38x = 33,630.26 × 7,639.60
  4. Step 4: Simplify right side
    22,420.38x = 256,921,734.30
  5. Step 5: Solve for x
    x = 256,921,734.30/22,420.38
  6. Step 6: Final answer
    x = 11,459.29

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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.