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Finding the Fourth Proportional to 30,374.92, 45,511.35 and 21,566.17

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Solution

The fourth proportional to 30,374.92, 45,511.35 and 21,566.17 is: 32,313.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.92 : 45,511.35 = 21,566.17 : x
  2. Step 2: Convert to fraction form
    30,374.92/45,511.35 = 21,566.17/x
  3. Step 3: Cross multiply
    30,374.92x = 45,511.35 × 21,566.17
  4. Step 4: Simplify right side
    30,374.92x = 981,505,511.03
  5. Step 5: Solve for x
    x = 981,505,511.03/30,374.92
  6. Step 6: Final answer
    x = 32,313.02

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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.