Home / 28,704.65-39,611.50-15,957.61

Finding the Fourth Proportional to 28,704.65, 39,611.50 and 15,957.61

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Solution

The fourth proportional to 28,704.65, 39,611.50 and 15,957.61 is: 22,020.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.65 : 39,611.50 = 15,957.61 : x
  2. Step 2: Convert to fraction form
    28,704.65/39,611.50 = 15,957.61/x
  3. Step 3: Cross multiply
    28,704.65x = 39,611.50 × 15,957.61
  4. Step 4: Simplify right side
    28,704.65x = 632,104,729.59
  5. Step 5: Solve for x
    x = 632,104,729.59/28,704.65
  6. Step 6: Final answer
    x = 22,020.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.