Home / 30,168.76-45,260.45-9,107.54

Finding the Fourth Proportional to 30,168.76, 45,260.45 and 9,107.54

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Solution

The fourth proportional to 30,168.76, 45,260.45 and 9,107.54 is: 13,663.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.76 : 45,260.45 = 9,107.54 : x
  2. Step 2: Convert to fraction form
    30,168.76/45,260.45 = 9,107.54/x
  3. Step 3: Cross multiply
    30,168.76x = 45,260.45 × 9,107.54
  4. Step 4: Simplify right side
    30,168.76x = 412,211,358.79
  5. Step 5: Solve for x
    x = 412,211,358.79/30,168.76
  6. Step 6: Final answer
    x = 13,663.52

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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.