Home / 19,104.30-28,664.55-12,089.70

Finding the Fourth Proportional to 19,104.30, 28,664.55 and 12,089.70

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Solution

The fourth proportional to 19,104.30, 28,664.55 and 12,089.70 is: 18,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,104.30 : 28,664.55 = 12,089.70 : x
  2. Step 2: Convert to fraction form
    19,104.30/28,664.55 = 12,089.70/x
  3. Step 3: Cross multiply
    19,104.30x = 28,664.55 × 12,089.70
  4. Step 4: Simplify right side
    19,104.30x = 346,545,810.14
  5. Step 5: Solve for x
    x = 346,545,810.14/19,104.30
  6. Step 6: Final answer
    x = 18,139.68

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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.