Home / 40,353.20-55,626.72-31,840.64

Finding the Fourth Proportional to 40,353.20, 55,626.72 and 31,840.64

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Solution

The fourth proportional to 40,353.20, 55,626.72 and 31,840.64 is: 43,892.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,353.20 : 55,626.72 = 31,840.64 : x
  2. Step 2: Convert to fraction form
    40,353.20/55,626.72 = 31,840.64/x
  3. Step 3: Cross multiply
    40,353.20x = 55,626.72 × 31,840.64
  4. Step 4: Simplify right side
    40,353.20x = 1,771,190,365.90
  5. Step 5: Solve for x
    x = 1,771,190,365.90/40,353.20
  6. Step 6: Final answer
    x = 43,892.19

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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.