Home / 31,319.06-43,220.86-17,171.73

Finding the Fourth Proportional to 31,319.06, 43,220.86 and 17,171.73

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Solution

The fourth proportional to 31,319.06, 43,220.86 and 17,171.73 is: 23,697.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.06 : 43,220.86 = 17,171.73 : x
  2. Step 2: Convert to fraction form
    31,319.06/43,220.86 = 17,171.73/x
  3. Step 3: Cross multiply
    31,319.06x = 43,220.86 × 17,171.73
  4. Step 4: Simplify right side
    31,319.06x = 742,176,895.36
  5. Step 5: Solve for x
    x = 742,176,895.36/31,319.06
  6. Step 6: Final answer
    x = 23,697.30

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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.