Home / 21,702.10-29,951.13-13,204.83

Finding the Fourth Proportional to 21,702.10, 29,951.13 and 13,204.83

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Solution

The fourth proportional to 21,702.10, 29,951.13 and 13,204.83 is: 18,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,702.10 : 29,951.13 = 13,204.83 : x
  2. Step 2: Convert to fraction form
    21,702.10/29,951.13 = 13,204.83/x
  3. Step 3: Cross multiply
    21,702.10x = 29,951.13 × 13,204.83
  4. Step 4: Simplify right side
    21,702.10x = 395,499,579.96
  5. Step 5: Solve for x
    x = 395,499,579.96/21,702.10
  6. Step 6: Final answer
    x = 18,224.02

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1.5x scale

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.