Home / 31,392.13-43,322.04-17,245.90

Finding the Fourth Proportional to 31,392.13, 43,322.04 and 17,245.90

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Solution

The fourth proportional to 31,392.13, 43,322.04 and 17,245.90 is: 23,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,392.13 : 43,322.04 = 17,245.90 : x
  2. Step 2: Convert to fraction form
    31,392.13/43,322.04 = 17,245.90/x
  3. Step 3: Cross multiply
    31,392.13x = 43,322.04 × 17,245.90
  4. Step 4: Simplify right side
    31,392.13x = 747,127,569.64
  5. Step 5: Solve for x
    x = 747,127,569.64/31,392.13
  6. Step 6: Final answer
    x = 23,799.84

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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.