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Finding the Fourth Proportional to 15,007.50, 20,560.20 and 14,446.80

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Solution

The fourth proportional to 15,007.50, 20,560.20 and 14,446.80 is: 19,792.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.50 : 20,560.20 = 14,446.80 : x
  2. Step 2: Convert to fraction form
    15,007.50/20,560.20 = 14,446.80/x
  3. Step 3: Cross multiply
    15,007.50x = 20,560.20 × 14,446.80
  4. Step 4: Simplify right side
    15,007.50x = 297,029,097.36
  5. Step 5: Solve for x
    x = 297,029,097.36/15,007.50
  6. Step 6: Final answer
    x = 19,792.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.