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Finding the Fourth Proportional to 40,639, 56,080.26 and 22,735.66

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Solution

The fourth proportional to 40,639, 56,080.26 and 22,735.66 is: 31,374.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,639 : 56,080.26 = 22,735.66 : x
  2. Step 2: Convert to fraction form
    40,639/56,080.26 = 22,735.66/x
  3. Step 3: Cross multiply
    40,639x = 56,080.26 × 22,735.66
  4. Step 4: Simplify right side
    40,639x = 1,275,021,724.07
  5. Step 5: Solve for x
    x = 1,275,021,724.07/40,639
  6. Step 6: Final answer
    x = 31,374.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.