Home / 40,154.41-55,420.86-23,169.64

Finding the Fourth Proportional to 40,154.41, 55,420.86 and 23,169.64

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Solution

The fourth proportional to 40,154.41, 55,420.86 and 23,169.64 is: 31,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,154.41 : 55,420.86 = 23,169.64 : x
  2. Step 2: Convert to fraction form
    40,154.41/55,420.86 = 23,169.64/x
  3. Step 3: Cross multiply
    40,154.41x = 55,420.86 × 23,169.64
  4. Step 4: Simplify right side
    40,154.41x = 1,284,081,374.69
  5. Step 5: Solve for x
    x = 1,284,081,374.69/40,154.41
  6. Step 6: Final answer
    x = 31,978.59

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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.