Home / 31,779.70-43,855.86-17,439.77

Finding the Fourth Proportional to 31,779.70, 43,855.86 and 17,439.77

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Solution

The fourth proportional to 31,779.70, 43,855.86 and 17,439.77 is: 24,066.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.70 : 43,855.86 = 17,439.77 : x
  2. Step 2: Convert to fraction form
    31,779.70/43,855.86 = 17,439.77/x
  3. Step 3: Cross multiply
    31,779.70x = 43,855.86 × 17,439.77
  4. Step 4: Simplify right side
    31,779.70x = 764,836,111.55
  5. Step 5: Solve for x
    x = 764,836,111.55/31,779.70
  6. Step 6: Final answer
    x = 24,066.81

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1.5x scale

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.