Home / 35,802.78-53,704.14-12,429.42

Finding the Fourth Proportional to 35,802.78, 53,704.14 and 12,429.42

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Solution

The fourth proportional to 35,802.78, 53,704.14 and 12,429.42 is: 18,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,802.78 : 53,704.14 = 12,429.42 : x
  2. Step 2: Convert to fraction form
    35,802.78/53,704.14 = 12,429.42/x
  3. Step 3: Cross multiply
    35,802.78x = 53,704.14 × 12,429.42
  4. Step 4: Simplify right side
    35,802.78x = 667,511,311.80
  5. Step 5: Solve for x
    x = 667,511,311.80/35,802.78
  6. Step 6: Final answer
    x = 18,644.12

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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.