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Finding the Fourth Proportional to 30,612.96, 45,918.96 and 16,754.40

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Solution

The fourth proportional to 30,612.96, 45,918.96 and 16,754.40 is: 25,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,612.96 : 45,918.96 = 16,754.40 : x
  2. Step 2: Convert to fraction form
    30,612.96/45,918.96 = 16,754.40/x
  3. Step 3: Cross multiply
    30,612.96x = 45,918.96 × 16,754.40
  4. Step 4: Simplify right side
    30,612.96x = 769,344,623.42
  5. Step 5: Solve for x
    x = 769,344,623.42/30,612.96
  6. Step 6: Final answer
    x = 25,131.34

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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.