Home / 28,957.26-43,448.04-12,320.88

Finding the Fourth Proportional to 28,957.26, 43,448.04 and 12,320.88

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Solution

The fourth proportional to 28,957.26, 43,448.04 and 12,320.88 is: 18,486.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.26 : 43,448.04 = 12,320.88 : x
  2. Step 2: Convert to fraction form
    28,957.26/43,448.04 = 12,320.88/x
  3. Step 3: Cross multiply
    28,957.26x = 43,448.04 × 12,320.88
  4. Step 4: Simplify right side
    28,957.26x = 535,318,087.08
  5. Step 5: Solve for x
    x = 535,318,087.08/28,957.26
  6. Step 6: Final answer
    x = 18,486.49

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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.