Home / 43,579.20-65,390.40-17,284.80

Finding the Fourth Proportional to 43,579.20, 65,390.40 and 17,284.80

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Solution

The fourth proportional to 43,579.20, 65,390.40 and 17,284.80 is: 25,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,579.20 : 65,390.40 = 17,284.80 : x
  2. Step 2: Convert to fraction form
    43,579.20/65,390.40 = 17,284.80/x
  3. Step 3: Cross multiply
    43,579.20x = 65,390.40 × 17,284.80
  4. Step 4: Simplify right side
    43,579.20x = 1,130,259,985.92
  5. Step 5: Solve for x
    x = 1,130,259,985.92/43,579.20
  6. Step 6: Final answer
    x = 25,935.77

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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.