Home / 30,546.36-42,149.70-17,116.56

Finding the Fourth Proportional to 30,546.36, 42,149.70 and 17,116.56

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Solution

The fourth proportional to 30,546.36, 42,149.70 and 17,116.56 is: 23,618.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,546.36 : 42,149.70 = 17,116.56 : x
  2. Step 2: Convert to fraction form
    30,546.36/42,149.70 = 17,116.56/x
  3. Step 3: Cross multiply
    30,546.36x = 42,149.70 × 17,116.56
  4. Step 4: Simplify right side
    30,546.36x = 721,457,869.03
  5. Step 5: Solve for x
    x = 721,457,869.03/30,546.36
  6. Step 6: Final answer
    x = 23,618.46

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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.