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Finding the Fourth Proportional to 69,007.58, 103,511.24 and 21,626.30

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Solution

The fourth proportional to 69,007.58, 103,511.24 and 21,626.30 is: 32,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,007.58 : 103,511.24 = 21,626.30 : x
  2. Step 2: Convert to fraction form
    69,007.58/103,511.24 = 21,626.30/x
  3. Step 3: Cross multiply
    69,007.58x = 103,511.24 × 21,626.30
  4. Step 4: Simplify right side
    69,007.58x = 2,238,565,129.61
  5. Step 5: Solve for x
    x = 2,238,565,129.61/69,007.58
  6. Step 6: Final answer
    x = 32,439.41

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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.