Home / 19,114.38-28,667.93-12,855.92

Finding the Fourth Proportional to 19,114.38, 28,667.93 and 12,855.92

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Solution

The fourth proportional to 19,114.38, 28,667.93 and 12,855.92 is: 19,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.38 : 28,667.93 = 12,855.92 : x
  2. Step 2: Convert to fraction form
    19,114.38/28,667.93 = 12,855.92/x
  3. Step 3: Cross multiply
    19,114.38x = 28,667.93 × 12,855.92
  4. Step 4: Simplify right side
    19,114.38x = 368,552,407.03
  5. Step 5: Solve for x
    x = 368,552,407.03/19,114.38
  6. Step 6: Final answer
    x = 19,281.42

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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.