Home / 31,319.28-43,221.48-17,173.08

Finding the Fourth Proportional to 31,319.28, 43,221.48 and 17,173.08

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Solution

The fourth proportional to 31,319.28, 43,221.48 and 17,173.08 is: 23,699.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.28 : 43,221.48 = 17,173.08 : x
  2. Step 2: Convert to fraction form
    31,319.28/43,221.48 = 17,173.08/x
  3. Step 3: Cross multiply
    31,319.28x = 43,221.48 × 17,173.08
  4. Step 4: Simplify right side
    31,319.28x = 742,245,933.76
  5. Step 5: Solve for x
    x = 742,245,933.76/31,319.28
  6. Step 6: Final answer
    x = 23,699.33

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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.