Home / 30,006.72-45,007.92-13,141.44

Finding the Fourth Proportional to 30,006.72, 45,007.92 and 13,141.44

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Solution

The fourth proportional to 30,006.72, 45,007.92 and 13,141.44 is: 19,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,006.72 : 45,007.92 = 13,141.44 : x
  2. Step 2: Convert to fraction form
    30,006.72/45,007.92 = 13,141.44/x
  3. Step 3: Cross multiply
    30,006.72x = 45,007.92 × 13,141.44
  4. Step 4: Simplify right side
    30,006.72x = 591,468,880.20
  5. Step 5: Solve for x
    x = 591,468,880.20/30,006.72
  6. Step 6: Final answer
    x = 19,711.21

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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.