Home / 31,319.08-43,220.32-17,171.62

Finding the Fourth Proportional to 31,319.08, 43,220.32 and 17,171.62

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Solution

The fourth proportional to 31,319.08, 43,220.32 and 17,171.62 is: 23,696.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.08 : 43,220.32 = 17,171.62 : x
  2. Step 2: Convert to fraction form
    31,319.08/43,220.32 = 17,171.62/x
  3. Step 3: Cross multiply
    31,319.08x = 43,220.32 × 17,171.62
  4. Step 4: Simplify right side
    31,319.08x = 742,162,911.32
  5. Step 5: Solve for x
    x = 742,162,911.32/31,319.08
  6. Step 6: Final answer
    x = 23,696.83

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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.