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Finding the Fourth Proportional to 34,377.80, 47,437.80 and 20,229.80

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Solution

The fourth proportional to 34,377.80, 47,437.80 and 20,229.80 is: 27,915.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,377.80 : 47,437.80 = 20,229.80 : x
  2. Step 2: Convert to fraction form
    34,377.80/47,437.80 = 20,229.80/x
  3. Step 3: Cross multiply
    34,377.80x = 47,437.80 × 20,229.80
  4. Step 4: Simplify right side
    34,377.80x = 959,657,206.44
  5. Step 5: Solve for x
    x = 959,657,206.44/34,377.80
  6. Step 6: Final answer
    x = 27,915.03

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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.