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Finding the Fourth Proportional to 30,235.41, 45,355.68 and 8,048.79

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Solution

The fourth proportional to 30,235.41, 45,355.68 and 8,048.79 is: 12,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,235.41 : 45,355.68 = 8,048.79 : x
  2. Step 2: Convert to fraction form
    30,235.41/45,355.68 = 8,048.79/x
  3. Step 3: Cross multiply
    30,235.41x = 45,355.68 × 8,048.79
  4. Step 4: Simplify right side
    30,235.41x = 365,058,343.63
  5. Step 5: Solve for x
    x = 365,058,343.63/30,235.41
  6. Step 6: Final answer
    x = 12,073.87

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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.