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Finding the Fourth Proportional to 30,630.90, 45,935.55 and 10,910.10

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Solution

The fourth proportional to 30,630.90, 45,935.55 and 10,910.10 is: 16,361.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,630.90 : 45,935.55 = 10,910.10 : x
  2. Step 2: Convert to fraction form
    30,630.90/45,935.55 = 10,910.10/x
  3. Step 3: Cross multiply
    30,630.90x = 45,935.55 × 10,910.10
  4. Step 4: Simplify right side
    30,630.90x = 501,161,444.06
  5. Step 5: Solve for x
    x = 501,161,444.06/30,630.90
  6. Step 6: Final answer
    x = 16,361.30

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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.