Home / 30,249.72-45,318.96-21,908.88

Finding the Fourth Proportional to 30,249.72, 45,318.96 and 21,908.88

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Solution

The fourth proportional to 30,249.72, 45,318.96 and 21,908.88 is: 32,823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,249.72 : 45,318.96 = 21,908.88 : x
  2. Step 2: Convert to fraction form
    30,249.72/45,318.96 = 21,908.88/x
  3. Step 3: Cross multiply
    30,249.72x = 45,318.96 × 21,908.88
  4. Step 4: Simplify right side
    30,249.72x = 992,887,656.36
  5. Step 5: Solve for x
    x = 992,887,656.36/30,249.72
  6. Step 6: Final answer
    x = 32,823.04

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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.