Home / 34,286.10-51,434.28-10,917.78

Finding the Fourth Proportional to 34,286.10, 51,434.28 and 10,917.78

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Solution

The fourth proportional to 34,286.10, 51,434.28 and 10,917.78 is: 16,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,286.10 : 51,434.28 = 10,917.78 : x
  2. Step 2: Convert to fraction form
    34,286.10/51,434.28 = 10,917.78/x
  3. Step 3: Cross multiply
    34,286.10x = 51,434.28 × 10,917.78
  4. Step 4: Simplify right side
    34,286.10x = 561,548,153.50
  5. Step 5: Solve for x
    x = 561,548,153.50/34,286.10
  6. Step 6: Final answer
    x = 16,378.30

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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.