Home / 31,655.96-43,684-17,509.04

Finding the Fourth Proportional to 31,655.96, 43,684 and 17,509.04

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Solution

The fourth proportional to 31,655.96, 43,684 and 17,509.04 is: 24,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655.96 : 43,684 = 17,509.04 : x
  2. Step 2: Convert to fraction form
    31,655.96/43,684 = 17,509.04/x
  3. Step 3: Cross multiply
    31,655.96x = 43,684 × 17,509.04
  4. Step 4: Simplify right side
    31,655.96x = 764,864,903.36
  5. Step 5: Solve for x
    x = 764,864,903.36/31,655.96
  6. Step 6: Final answer
    x = 24,161.80

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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.