Home / 21,702.20-32,553.30-11,312.60

Finding the Fourth Proportional to 21,702.20, 32,553.30 and 11,312.60

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Solution

The fourth proportional to 21,702.20, 32,553.30 and 11,312.60 is: 16,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,702.20 : 32,553.30 = 11,312.60 : x
  2. Step 2: Convert to fraction form
    21,702.20/32,553.30 = 11,312.60/x
  3. Step 3: Cross multiply
    21,702.20x = 32,553.30 × 11,312.60
  4. Step 4: Simplify right side
    21,702.20x = 368,262,461.58
  5. Step 5: Solve for x
    x = 368,262,461.58/21,702.20
  6. Step 6: Final answer
    x = 16,968.90

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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.