Home / 31,319.91-43,221.42-17,173.67

Finding the Fourth Proportional to 31,319.91, 43,221.42 and 17,173.67

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Solution

The fourth proportional to 31,319.91, 43,221.42 and 17,173.67 is: 23,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.91 : 43,221.42 = 17,173.67 : x
  2. Step 2: Convert to fraction form
    31,319.91/43,221.42 = 17,173.67/x
  3. Step 3: Cross multiply
    31,319.91x = 43,221.42 × 17,173.67
  4. Step 4: Simplify right side
    31,319.91x = 742,270,187.90
  5. Step 5: Solve for x
    x = 742,270,187.90/31,319.91
  6. Step 6: Final answer
    x = 23,699.63

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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.