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Finding the Fourth Proportional to 30,325.81, 45,482.44 and 8,133.91

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Solution

The fourth proportional to 30,325.81, 45,482.44 and 8,133.91 is: 12,199.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,325.81 : 45,482.44 = 8,133.91 : x
  2. Step 2: Convert to fraction form
    30,325.81/45,482.44 = 8,133.91/x
  3. Step 3: Cross multiply
    30,325.81x = 45,482.44 × 8,133.91
  4. Step 4: Simplify right side
    30,325.81x = 369,950,073.54
  5. Step 5: Solve for x
    x = 369,950,073.54/30,325.81
  6. Step 6: Final answer
    x = 12,199.18

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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.