Home / 28,702.61-43,046.10-18,156.80

Finding the Fourth Proportional to 28,702.61, 43,046.10 and 18,156.80

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Solution

The fourth proportional to 28,702.61, 43,046.10 and 18,156.80 is: 27,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.61 : 43,046.10 = 18,156.80 : x
  2. Step 2: Convert to fraction form
    28,702.61/43,046.10 = 18,156.80/x
  3. Step 3: Cross multiply
    28,702.61x = 43,046.10 × 18,156.80
  4. Step 4: Simplify right side
    28,702.61x = 781,579,428.48
  5. Step 5: Solve for x
    x = 781,579,428.48/28,702.61
  6. Step 6: Final answer
    x = 27,230.26

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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.