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Finding the Fourth Proportional to 30,006.80, 45,015.04 and 9,230.28

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Solution

The fourth proportional to 30,006.80, 45,015.04 and 9,230.28 is: 13,846.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,006.80 : 45,015.04 = 9,230.28 : x
  2. Step 2: Convert to fraction form
    30,006.80/45,015.04 = 9,230.28/x
  3. Step 3: Cross multiply
    30,006.80x = 45,015.04 × 9,230.28
  4. Step 4: Simplify right side
    30,006.80x = 415,501,423.41
  5. Step 5: Solve for x
    x = 415,501,423.41/30,006.80
  6. Step 6: Final answer
    x = 13,846.91

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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.