Home / 30,508.31-45,832.48-21,645.50

Finding the Fourth Proportional to 30,508.31, 45,832.48 and 21,645.50

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Solution

The fourth proportional to 30,508.31, 45,832.48 and 21,645.50 is: 32,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.31 : 45,832.48 = 21,645.50 : x
  2. Step 2: Convert to fraction form
    30,508.31/45,832.48 = 21,645.50/x
  3. Step 3: Cross multiply
    30,508.31x = 45,832.48 × 21,645.50
  4. Step 4: Simplify right side
    30,508.31x = 992,066,662.56
  5. Step 5: Solve for x
    x = 992,066,662.56/30,508.31
  6. Step 6: Final answer
    x = 32,517.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.