Home / 28,702.80-43,036.59-11,152.14

Finding the Fourth Proportional to 28,702.80, 43,036.59 and 11,152.14

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Solution

The fourth proportional to 28,702.80, 43,036.59 and 11,152.14 is: 16,721.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.80 : 43,036.59 = 11,152.14 : x
  2. Step 2: Convert to fraction form
    28,702.80/43,036.59 = 11,152.14/x
  3. Step 3: Cross multiply
    28,702.80x = 43,036.59 × 11,152.14
  4. Step 4: Simplify right side
    28,702.80x = 479,950,076.80
  5. Step 5: Solve for x
    x = 479,950,076.80/28,702.80
  6. Step 6: Final answer
    x = 16,721.37

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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.