Home / 43,977.52-65,977.12-12,813.04

Finding the Fourth Proportional to 43,977.52, 65,977.12 and 12,813.04

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Solution

The fourth proportional to 43,977.52, 65,977.12 and 12,813.04 is: 19,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,977.52 : 65,977.12 = 12,813.04 : x
  2. Step 2: Convert to fraction form
    43,977.52/65,977.12 = 12,813.04/x
  3. Step 3: Cross multiply
    43,977.52x = 65,977.12 × 12,813.04
  4. Step 4: Simplify right side
    43,977.52x = 845,367,477.64
  5. Step 5: Solve for x
    x = 845,367,477.64/43,977.52
  6. Step 6: Final answer
    x = 19,222.72

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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.