Home / 43,519.78-65,283.47-12,355.03

Finding the Fourth Proportional to 43,519.78, 65,283.47 and 12,355.03

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Solution

The fourth proportional to 43,519.78, 65,283.47 and 12,355.03 is: 18,533.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,519.78 : 65,283.47 = 12,355.03 : x
  2. Step 2: Convert to fraction form
    43,519.78/65,283.47 = 12,355.03/x
  3. Step 3: Cross multiply
    43,519.78x = 65,283.47 × 12,355.03
  4. Step 4: Simplify right side
    43,519.78x = 806,579,296.51
  5. Step 5: Solve for x
    x = 806,579,296.51/43,519.78
  6. Step 6: Final answer
    x = 18,533.62

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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.