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Finding the Fourth Proportional to 30,001.76, 45,015.60 and 16,834.40

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Solution

The fourth proportional to 30,001.76, 45,015.60 and 16,834.40 is: 25,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,001.76 : 45,015.60 = 16,834.40 : x
  2. Step 2: Convert to fraction form
    30,001.76/45,015.60 = 16,834.40/x
  3. Step 3: Cross multiply
    30,001.76x = 45,015.60 × 16,834.40
  4. Step 4: Simplify right side
    30,001.76x = 757,810,616.64
  5. Step 5: Solve for x
    x = 757,810,616.64/30,001.76
  6. Step 6: Final answer
    x = 25,258.87

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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.