Home / 28,646.07-42,974.78-8,923.79

Finding the Fourth Proportional to 28,646.07, 42,974.78 and 8,923.79

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Solution

The fourth proportional to 28,646.07, 42,974.78 and 8,923.79 is: 13,387.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.07 : 42,974.78 = 8,923.79 : x
  2. Step 2: Convert to fraction form
    28,646.07/42,974.78 = 8,923.79/x
  3. Step 3: Cross multiply
    28,646.07x = 42,974.78 × 8,923.79
  4. Step 4: Simplify right side
    28,646.07x = 383,497,652.52
  5. Step 5: Solve for x
    x = 383,497,652.52/28,646.07
  6. Step 6: Final answer
    x = 13,387.44

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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.