Home / 21,702.26-29,944.05-12,269.54

Finding the Fourth Proportional to 21,702.26, 29,944.05 and 12,269.54

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Solution

The fourth proportional to 21,702.26, 29,944.05 and 12,269.54 is: 16,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,702.26 : 29,944.05 = 12,269.54 : x
  2. Step 2: Convert to fraction form
    21,702.26/29,944.05 = 12,269.54/x
  3. Step 3: Cross multiply
    21,702.26x = 29,944.05 × 12,269.54
  4. Step 4: Simplify right side
    21,702.26x = 367,399,719.24
  5. Step 5: Solve for x
    x = 367,399,719.24/21,702.26
  6. Step 6: Final answer
    x = 16,929.10

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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.