Home / 31,779.69-43,855.20-17,439.45

Finding the Fourth Proportional to 31,779.69, 43,855.20 and 17,439.45

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Solution

The fourth proportional to 31,779.69, 43,855.20 and 17,439.45 is: 24,066.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.69 : 43,855.20 = 17,439.45 : x
  2. Step 2: Convert to fraction form
    31,779.69/43,855.20 = 17,439.45/x
  3. Step 3: Cross multiply
    31,779.69x = 43,855.20 × 17,439.45
  4. Step 4: Simplify right side
    31,779.69x = 764,810,567.64
  5. Step 5: Solve for x
    x = 764,810,567.64/31,779.69
  6. Step 6: Final answer
    x = 24,066.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.