Home / 18,949.20-28,366.20-16,875.60

Finding the Fourth Proportional to 18,949.20, 28,366.20 and 16,875.60

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Solution

The fourth proportional to 18,949.20, 28,366.20 and 16,875.60 is: 25,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.20 : 28,366.20 = 16,875.60 : x
  2. Step 2: Convert to fraction form
    18,949.20/28,366.20 = 16,875.60/x
  3. Step 3: Cross multiply
    18,949.20x = 28,366.20 × 16,875.60
  4. Step 4: Simplify right side
    18,949.20x = 478,696,644.72
  5. Step 5: Solve for x
    x = 478,696,644.72/18,949.20
  6. Step 6: Final answer
    x = 25,262.10

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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.