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Finding the Fourth Proportional to 30,003.35, 45,004.47 and 8,957.67

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Solution

The fourth proportional to 30,003.35, 45,004.47 and 8,957.67 is: 13,436.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003.35 : 45,004.47 = 8,957.67 : x
  2. Step 2: Convert to fraction form
    30,003.35/45,004.47 = 8,957.67/x
  3. Step 3: Cross multiply
    30,003.35x = 45,004.47 × 8,957.67
  4. Step 4: Simplify right side
    30,003.35x = 403,135,190.78
  5. Step 5: Solve for x
    x = 403,135,190.78/30,003.35
  6. Step 6: Final answer
    x = 13,436.34

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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.