Home / 34,438.20-51,689.64-16,920.60

Finding the Fourth Proportional to 34,438.20, 51,689.64 and 16,920.60

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Solution

The fourth proportional to 34,438.20, 51,689.64 and 16,920.60 is: 25,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,438.20 : 51,689.64 = 16,920.60 : x
  2. Step 2: Convert to fraction form
    34,438.20/51,689.64 = 16,920.60/x
  3. Step 3: Cross multiply
    34,438.20x = 51,689.64 × 16,920.60
  4. Step 4: Simplify right side
    34,438.20x = 874,619,722.58
  5. Step 5: Solve for x
    x = 874,619,722.58/34,438.20
  6. Step 6: Final answer
    x = 25,396.79

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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.