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Finding the Fourth Proportional to 18,797.87, 28,210.46 and 15,144.23

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Solution

The fourth proportional to 18,797.87, 28,210.46 and 15,144.23 is: 22,727.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.87 : 28,210.46 = 15,144.23 : x
  2. Step 2: Convert to fraction form
    18,797.87/28,210.46 = 15,144.23/x
  3. Step 3: Cross multiply
    18,797.87x = 28,210.46 × 15,144.23
  4. Step 4: Simplify right side
    18,797.87x = 427,225,477.87
  5. Step 5: Solve for x
    x = 427,225,477.87/18,797.87
  6. Step 6: Final answer
    x = 22,727.34

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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.