Home / 15,240.20-22,860.30-5,379.80

Finding the Fourth Proportional to 15,240.20, 22,860.30 and 5,379.80

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Solution

The fourth proportional to 15,240.20, 22,860.30 and 5,379.80 is: 8,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.20 : 22,860.30 = 5,379.80 : x
  2. Step 2: Convert to fraction form
    15,240.20/22,860.30 = 5,379.80/x
  3. Step 3: Cross multiply
    15,240.20x = 22,860.30 × 5,379.80
  4. Step 4: Simplify right side
    15,240.20x = 122,983,841.94
  5. Step 5: Solve for x
    x = 122,983,841.94/15,240.20
  6. Step 6: Final answer
    x = 8,069.70

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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.