Home / 33,318.96-45,975.72-21,398.44

Finding the Fourth Proportional to 33,318.96, 45,975.72 and 21,398.44

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Solution

The fourth proportional to 33,318.96, 45,975.72 and 21,398.44 is: 29,527.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,318.96 : 45,975.72 = 21,398.44 : x
  2. Step 2: Convert to fraction form
    33,318.96/45,975.72 = 21,398.44/x
  3. Step 3: Cross multiply
    33,318.96x = 45,975.72 × 21,398.44
  4. Step 4: Simplify right side
    33,318.96x = 983,808,685.88
  5. Step 5: Solve for x
    x = 983,808,685.88/33,318.96
  6. Step 6: Final answer
    x = 29,527.00

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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.