Home / 43,513.20-65,291.40-17,218.80

Finding the Fourth Proportional to 43,513.20, 65,291.40 and 17,218.80

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Solution

The fourth proportional to 43,513.20, 65,291.40 and 17,218.80 is: 25,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,513.20 : 65,291.40 = 17,218.80 : x
  2. Step 2: Convert to fraction form
    43,513.20/65,291.40 = 17,218.80/x
  3. Step 3: Cross multiply
    43,513.20x = 65,291.40 × 17,218.80
  4. Step 4: Simplify right side
    43,513.20x = 1,124,239,558.32
  5. Step 5: Solve for x
    x = 1,124,239,558.32/43,513.20
  6. Step 6: Final answer
    x = 25,836.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.