Home / 31,318.08-43,218.94-17,170.62

Finding the Fourth Proportional to 31,318.08, 43,218.94 and 17,170.62

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Solution

The fourth proportional to 31,318.08, 43,218.94 and 17,170.62 is: 23,695.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,318.08 : 43,218.94 = 17,170.62 : x
  2. Step 2: Convert to fraction form
    31,318.08/43,218.94 = 17,170.62/x
  3. Step 3: Cross multiply
    31,318.08x = 43,218.94 × 17,170.62
  4. Step 4: Simplify right side
    31,318.08x = 742,095,995.54
  5. Step 5: Solve for x
    x = 742,095,995.54/31,318.08
  6. Step 6: Final answer
    x = 23,695.45

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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.