Home / 28,971.68-43,424.24-12,307.04

Finding the Fourth Proportional to 28,971.68, 43,424.24 and 12,307.04

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Solution

The fourth proportional to 28,971.68, 43,424.24 and 12,307.04 is: 18,446.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.68 : 43,424.24 = 12,307.04 : x
  2. Step 2: Convert to fraction form
    28,971.68/43,424.24 = 12,307.04/x
  3. Step 3: Cross multiply
    28,971.68x = 43,424.24 × 12,307.04
  4. Step 4: Simplify right side
    28,971.68x = 534,423,858.65
  5. Step 5: Solve for x
    x = 534,423,858.65/28,971.68
  6. Step 6: Final answer
    x = 18,446.42

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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.