Home / 32,728.80-49,136.88-21,051.84

Finding the Fourth Proportional to 32,728.80, 49,136.88 and 21,051.84

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Solution

The fourth proportional to 32,728.80, 49,136.88 and 21,051.84 is: 31,605.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,728.80 : 49,136.88 = 21,051.84 : x
  2. Step 2: Convert to fraction form
    32,728.80/49,136.88 = 21,051.84/x
  3. Step 3: Cross multiply
    32,728.80x = 49,136.88 × 21,051.84
  4. Step 4: Simplify right side
    32,728.80x = 1,034,421,735.86
  5. Step 5: Solve for x
    x = 1,034,421,735.86/32,728.80
  6. Step 6: Final answer
    x = 31,605.86

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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.