Home / 31,667.59-43,688.57-18,231.64

Finding the Fourth Proportional to 31,667.59, 43,688.57 and 18,231.64

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Solution

The fourth proportional to 31,667.59, 43,688.57 and 18,231.64 is: 25,152.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,667.59 : 43,688.57 = 18,231.64 : x
  2. Step 2: Convert to fraction form
    31,667.59/43,688.57 = 18,231.64/x
  3. Step 3: Cross multiply
    31,667.59x = 43,688.57 × 18,231.64
  4. Step 4: Simplify right side
    31,667.59x = 796,514,087.83
  5. Step 5: Solve for x
    x = 796,514,087.83/31,667.59
  6. Step 6: Final answer
    x = 25,152.34

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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.