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Finding the Fourth Proportional to 20,337.51, 30,510.39 and 7,199.10

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Solution

The fourth proportional to 20,337.51, 30,510.39 and 7,199.10 is: 10,800.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.51 : 30,510.39 = 7,199.10 : x
  2. Step 2: Convert to fraction form
    20,337.51/30,510.39 = 7,199.10/x
  3. Step 3: Cross multiply
    20,337.51x = 30,510.39 × 7,199.10
  4. Step 4: Simplify right side
    20,337.51x = 219,647,348.65
  5. Step 5: Solve for x
    x = 219,647,348.65/20,337.51
  6. Step 6: Final answer
    x = 10,800.11

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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.