Home / 31,318.32-43,219.26-17,171.40

Finding the Fourth Proportional to 31,318.32, 43,219.26 and 17,171.40

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Solution

The fourth proportional to 31,318.32, 43,219.26 and 17,171.40 is: 23,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,318.32 : 43,219.26 = 17,171.40 : x
  2. Step 2: Convert to fraction form
    31,318.32/43,219.26 = 17,171.40/x
  3. Step 3: Cross multiply
    31,318.32x = 43,219.26 × 17,171.40
  4. Step 4: Simplify right side
    31,318.32x = 742,135,201.16
  5. Step 5: Solve for x
    x = 742,135,201.16/31,318.32
  6. Step 6: Final answer
    x = 23,696.52

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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.