Home / 30,105.92-45,155.64-10,382.96

Finding the Fourth Proportional to 30,105.92, 45,155.64 and 10,382.96

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Solution

The fourth proportional to 30,105.92, 45,155.64 and 10,382.96 is: 15,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.92 : 45,155.64 = 10,382.96 : x
  2. Step 2: Convert to fraction form
    30,105.92/45,155.64 = 10,382.96/x
  3. Step 3: Cross multiply
    30,105.92x = 45,155.64 × 10,382.96
  4. Step 4: Simplify right side
    30,105.92x = 468,849,203.89
  5. Step 5: Solve for x
    x = 468,849,203.89/30,105.92
  6. Step 6: Final answer
    x = 15,573.32

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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.