Home / 30,162.20-45,271.20-15,382.13

Finding the Fourth Proportional to 30,162.20, 45,271.20 and 15,382.13

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Solution

The fourth proportional to 30,162.20, 45,271.20 and 15,382.13 is: 23,087.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,162.20 : 45,271.20 = 15,382.13 : x
  2. Step 2: Convert to fraction form
    30,162.20/45,271.20 = 15,382.13/x
  3. Step 3: Cross multiply
    30,162.20x = 45,271.20 × 15,382.13
  4. Step 4: Simplify right side
    30,162.20x = 696,367,257.30
  5. Step 5: Solve for x
    x = 696,367,257.30/30,162.20
  6. Step 6: Final answer
    x = 23,087.42

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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.