Home / 19,039.52-28,515.48-12,456.62

Finding the Fourth Proportional to 19,039.52, 28,515.48 and 12,456.62

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Solution

The fourth proportional to 19,039.52, 28,515.48 and 12,456.62 is: 18,656.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.52 : 28,515.48 = 12,456.62 : x
  2. Step 2: Convert to fraction form
    19,039.52/28,515.48 = 12,456.62/x
  3. Step 3: Cross multiply
    19,039.52x = 28,515.48 × 12,456.62
  4. Step 4: Simplify right side
    19,039.52x = 355,206,498.48
  5. Step 5: Solve for x
    x = 355,206,498.48/19,039.52
  6. Step 6: Final answer
    x = 18,656.27

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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.