Home / 30,041.20-45,064.21-8,979.70

Finding the Fourth Proportional to 30,041.20, 45,064.21 and 8,979.70

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Solution

The fourth proportional to 30,041.20, 45,064.21 and 8,979.70 is: 13,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.20 : 45,064.21 = 8,979.70 : x
  2. Step 2: Convert to fraction form
    30,041.20/45,064.21 = 8,979.70/x
  3. Step 3: Cross multiply
    30,041.20x = 45,064.21 × 8,979.70
  4. Step 4: Simplify right side
    30,041.20x = 404,663,086.54
  5. Step 5: Solve for x
    x = 404,663,086.54/30,041.20
  6. Step 6: Final answer
    x = 13,470.27

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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.