Home / 35,803.42-53,729.78-12,429.86

Finding the Fourth Proportional to 35,803.42, 53,729.78 and 12,429.86

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Solution

The fourth proportional to 35,803.42, 53,729.78 and 12,429.86 is: 18,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,803.42 : 53,729.78 = 12,429.86 : x
  2. Step 2: Convert to fraction form
    35,803.42/53,729.78 = 12,429.86/x
  3. Step 3: Cross multiply
    35,803.42x = 53,729.78 × 12,429.86
  4. Step 4: Simplify right side
    35,803.42x = 667,853,312.43
  5. Step 5: Solve for x
    x = 667,853,312.43/35,803.42
  6. Step 6: Final answer
    x = 18,653.34

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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.