Home / 28,702.38-39,611.99-17,374.70

Finding the Fourth Proportional to 28,702.38, 39,611.99 and 17,374.70

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Solution

The fourth proportional to 28,702.38, 39,611.99 and 17,374.70 is: 23,978.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.38 : 39,611.99 = 17,374.70 : x
  2. Step 2: Convert to fraction form
    28,702.38/39,611.99 = 17,374.70/x
  3. Step 3: Cross multiply
    28,702.38x = 39,611.99 × 17,374.70
  4. Step 4: Simplify right side
    28,702.38x = 688,246,442.65
  5. Step 5: Solve for x
    x = 688,246,442.65/28,702.38
  6. Step 6: Final answer
    x = 23,978.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.