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Finding the Fourth Proportional to 30,007.32, 44,982.12 and 20,149.32

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Solution

The fourth proportional to 30,007.32, 44,982.12 and 20,149.32 is: 30,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,007.32 : 44,982.12 = 20,149.32 : x
  2. Step 2: Convert to fraction form
    30,007.32/44,982.12 = 20,149.32/x
  3. Step 3: Cross multiply
    30,007.32x = 44,982.12 × 20,149.32
  4. Step 4: Simplify right side
    30,007.32x = 906,359,130.16
  5. Step 5: Solve for x
    x = 906,359,130.16/30,007.32
  6. Step 6: Final answer
    x = 30,204.60

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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.