Home / 19,167.37-28,738.75-12,585.87

Finding the Fourth Proportional to 19,167.37, 28,738.75 and 12,585.87

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Solution

The fourth proportional to 19,167.37, 28,738.75 and 12,585.87 is: 18,870.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,167.37 : 28,738.75 = 12,585.87 : x
  2. Step 2: Convert to fraction form
    19,167.37/28,738.75 = 12,585.87/x
  3. Step 3: Cross multiply
    19,167.37x = 28,738.75 × 12,585.87
  4. Step 4: Simplify right side
    19,167.37x = 361,702,171.46
  5. Step 5: Solve for x
    x = 361,702,171.46/19,167.37
  6. Step 6: Final answer
    x = 18,870.73

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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.