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Finding the Fourth Proportional to 43,010.40, 64,515.60 and 22,015.20

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Solution

The fourth proportional to 43,010.40, 64,515.60 and 22,015.20 is: 33,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,010.40 : 64,515.60 = 22,015.20 : x
  2. Step 2: Convert to fraction form
    43,010.40/64,515.60 = 22,015.20/x
  3. Step 3: Cross multiply
    43,010.40x = 64,515.60 × 22,015.20
  4. Step 4: Simplify right side
    43,010.40x = 1,420,323,837.12
  5. Step 5: Solve for x
    x = 1,420,323,837.12/43,010.40
  6. Step 6: Final answer
    x = 33,022.80

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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.