Home / 33,231.96-45,865.08-21,308.76

Finding the Fourth Proportional to 33,231.96, 45,865.08 and 21,308.76

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Solution

The fourth proportional to 33,231.96, 45,865.08 and 21,308.76 is: 29,409.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,231.96 : 45,865.08 = 21,308.76 : x
  2. Step 2: Convert to fraction form
    33,231.96/45,865.08 = 21,308.76/x
  3. Step 3: Cross multiply
    33,231.96x = 45,865.08 × 21,308.76
  4. Step 4: Simplify right side
    33,231.96x = 977,327,982.10
  5. Step 5: Solve for x
    x = 977,327,982.10/33,231.96
  6. Step 6: Final answer
    x = 29,409.28

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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.