Home / 28,490.52-42,698.78-11,603.83

Finding the Fourth Proportional to 28,490.52, 42,698.78 and 11,603.83

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Solution

The fourth proportional to 28,490.52, 42,698.78 and 11,603.83 is: 17,390.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,490.52 : 42,698.78 = 11,603.83 : x
  2. Step 2: Convert to fraction form
    28,490.52/42,698.78 = 11,603.83/x
  3. Step 3: Cross multiply
    28,490.52x = 42,698.78 × 11,603.83
  4. Step 4: Simplify right side
    28,490.52x = 495,469,377.08
  5. Step 5: Solve for x
    x = 495,469,377.08/28,490.52
  6. Step 6: Final answer
    x = 17,390.68

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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.