Home / 28,687.10-43,024.14-10,911.42

Finding the Fourth Proportional to 28,687.10, 43,024.14 and 10,911.42

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Solution

The fourth proportional to 28,687.10, 43,024.14 and 10,911.42 is: 16,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.10 : 43,024.14 = 10,911.42 : x
  2. Step 2: Convert to fraction form
    28,687.10/43,024.14 = 10,911.42/x
  3. Step 3: Cross multiply
    28,687.10x = 43,024.14 × 10,911.42
  4. Step 4: Simplify right side
    28,687.10x = 469,454,461.68
  5. Step 5: Solve for x
    x = 469,454,461.68/28,687.10
  6. Step 6: Final answer
    x = 16,364.65

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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.