Home / 40,191.18-55,464.42-22,043.64

Finding the Fourth Proportional to 40,191.18, 55,464.42 and 22,043.64

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Solution

The fourth proportional to 40,191.18, 55,464.42 and 22,043.64 is: 30,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,191.18 : 55,464.42 = 22,043.64 : x
  2. Step 2: Convert to fraction form
    40,191.18/55,464.42 = 22,043.64/x
  3. Step 3: Cross multiply
    40,191.18x = 55,464.42 × 22,043.64
  4. Step 4: Simplify right side
    40,191.18x = 1,222,637,707.29
  5. Step 5: Solve for x
    x = 1,222,637,707.29/40,191.18
  6. Step 6: Final answer
    x = 30,420.55

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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.