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Finding the Fourth Proportional to 30,248.82, 45,333.90 and 16,921.17

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Solution

The fourth proportional to 30,248.82, 45,333.90 and 16,921.17 is: 25,359.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,248.82 : 45,333.90 = 16,921.17 : x
  2. Step 2: Convert to fraction form
    30,248.82/45,333.90 = 16,921.17/x
  3. Step 3: Cross multiply
    30,248.82x = 45,333.90 × 16,921.17
  4. Step 4: Simplify right side
    30,248.82x = 767,102,628.66
  5. Step 5: Solve for x
    x = 767,102,628.66/30,248.82
  6. Step 6: Final answer
    x = 25,359.75

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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.