Home / 21,074.52-31,611.78-14,480.73

Finding the Fourth Proportional to 21,074.52, 31,611.78 and 14,480.73

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Solution

The fourth proportional to 21,074.52, 31,611.78 and 14,480.73 is: 21,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.52 : 31,611.78 = 14,480.73 : x
  2. Step 2: Convert to fraction form
    21,074.52/31,611.78 = 14,480.73/x
  3. Step 3: Cross multiply
    21,074.52x = 31,611.78 × 14,480.73
  4. Step 4: Simplify right side
    21,074.52x = 457,761,651.00
  5. Step 5: Solve for x
    x = 457,761,651.00/21,074.52
  6. Step 6: Final answer
    x = 21,721.10

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Similar ratio
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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.