Home / 30,168.92-45,260.69-9,107.70

Finding the Fourth Proportional to 30,168.92, 45,260.69 and 9,107.70

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Solution

The fourth proportional to 30,168.92, 45,260.69 and 9,107.70 is: 13,663.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.92 : 45,260.69 = 9,107.70 : x
  2. Step 2: Convert to fraction form
    30,168.92/45,260.69 = 9,107.70/x
  3. Step 3: Cross multiply
    30,168.92x = 45,260.69 × 9,107.70
  4. Step 4: Simplify right side
    30,168.92x = 412,220,740.77
  5. Step 5: Solve for x
    x = 412,220,740.77/30,168.92
  6. Step 6: Final answer
    x = 13,663.76

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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.