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Finding the Fourth Proportional to 18,866.08, 28,295.46 and 17,929.46

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Solution

The fourth proportional to 18,866.08, 28,295.46 and 17,929.46 is: 26,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.08 : 28,295.46 = 17,929.46 : x
  2. Step 2: Convert to fraction form
    18,866.08/28,295.46 = 17,929.46/x
  3. Step 3: Cross multiply
    18,866.08x = 28,295.46 × 17,929.46
  4. Step 4: Simplify right side
    18,866.08x = 507,322,318.25
  5. Step 5: Solve for x
    x = 507,322,318.25/18,866.08
  6. Step 6: Final answer
    x = 26,890.71

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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.