Home / 43,583.06-65,385.53-12,418.31

Finding the Fourth Proportional to 43,583.06, 65,385.53 and 12,418.31

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Solution

The fourth proportional to 43,583.06, 65,385.53 and 12,418.31 is: 18,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,583.06 : 65,385.53 = 12,418.31 : x
  2. Step 2: Convert to fraction form
    43,583.06/65,385.53 = 12,418.31/x
  3. Step 3: Cross multiply
    43,583.06x = 65,385.53 × 12,418.31
  4. Step 4: Simplify right side
    43,583.06x = 811,977,929.00
  5. Step 5: Solve for x
    x = 811,977,929.00/43,583.06
  6. Step 6: Final answer
    x = 18,630.58

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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.