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Finding the Fourth Proportional to 69,008.58, 103,512.74 and 21,627.30

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Solution

The fourth proportional to 69,008.58, 103,512.74 and 21,627.30 is: 32,440.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,008.58 : 103,512.74 = 21,627.30 : x
  2. Step 2: Convert to fraction form
    69,008.58/103,512.74 = 21,627.30/x
  3. Step 3: Cross multiply
    69,008.58x = 103,512.74 × 21,627.30
  4. Step 4: Simplify right side
    69,008.58x = 2,238,701,081.80
  5. Step 5: Solve for x
    x = 2,238,701,081.80/69,008.58
  6. Step 6: Final answer
    x = 32,440.91

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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.