Home / 19,240.20-28,860.30-12,673.80

Finding the Fourth Proportional to 19,240.20, 28,860.30 and 12,673.80

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Solution

The fourth proportional to 19,240.20, 28,860.30 and 12,673.80 is: 19,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.20 : 28,860.30 = 12,673.80 : x
  2. Step 2: Convert to fraction form
    19,240.20/28,860.30 = 12,673.80/x
  3. Step 3: Cross multiply
    19,240.20x = 28,860.30 × 12,673.80
  4. Step 4: Simplify right side
    19,240.20x = 365,769,670.14
  5. Step 5: Solve for x
    x = 365,769,670.14/19,240.20
  6. Step 6: Final answer
    x = 19,010.70

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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.