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Finding the Fourth Proportional to 22,420.06, 33,630.36 and 7,629.28

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Solution

The fourth proportional to 22,420.06, 33,630.36 and 7,629.28 is: 11,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.06 : 33,630.36 = 7,629.28 : x
  2. Step 2: Convert to fraction form
    22,420.06/33,630.36 = 7,629.28/x
  3. Step 3: Cross multiply
    22,420.06x = 33,630.36 × 7,629.28
  4. Step 4: Simplify right side
    22,420.06x = 256,575,432.94
  5. Step 5: Solve for x
    x = 256,575,432.94/22,420.06
  6. Step 6: Final answer
    x = 11,444.01

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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.