Home / 29,121.66-40,161.96-19,702.98

Finding the Fourth Proportional to 29,121.66, 40,161.96 and 19,702.98

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Solution

The fourth proportional to 29,121.66, 40,161.96 and 19,702.98 is: 27,172.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121.66 : 40,161.96 = 19,702.98 : x
  2. Step 2: Convert to fraction form
    29,121.66/40,161.96 = 19,702.98/x
  3. Step 3: Cross multiply
    29,121.66x = 40,161.96 × 19,702.98
  4. Step 4: Simplify right side
    29,121.66x = 791,310,294.64
  5. Step 5: Solve for x
    x = 791,310,294.64/29,121.66
  6. Step 6: Final answer
    x = 27,172.57

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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.