Home / 30,626.33-45,939.50-8,439.93

Finding the Fourth Proportional to 30,626.33, 45,939.50 and 8,439.93

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Solution

The fourth proportional to 30,626.33, 45,939.50 and 8,439.93 is: 12,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,626.33 : 45,939.50 = 8,439.93 : x
  2. Step 2: Convert to fraction form
    30,626.33/45,939.50 = 8,439.93/x
  3. Step 3: Cross multiply
    30,626.33x = 45,939.50 × 8,439.93
  4. Step 4: Simplify right side
    30,626.33x = 387,726,164.24
  5. Step 5: Solve for x
    x = 387,726,164.24/30,626.33
  6. Step 6: Final answer
    x = 12,659.90

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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.