Home / 19,172.52-28,763.55-18,854.66

Finding the Fourth Proportional to 19,172.52, 28,763.55 and 18,854.66

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Solution

The fourth proportional to 19,172.52, 28,763.55 and 18,854.66 is: 28,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.52 : 28,763.55 = 18,854.66 : x
  2. Step 2: Convert to fraction form
    19,172.52/28,763.55 = 18,854.66/x
  3. Step 3: Cross multiply
    19,172.52x = 28,763.55 × 18,854.66
  4. Step 4: Simplify right side
    19,172.52x = 542,327,027.55
  5. Step 5: Solve for x
    x = 542,327,027.55/19,172.52
  6. Step 6: Final answer
    x = 28,286.68

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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.