Home / 31,840.02-47,759.22-15,211.80

Finding the Fourth Proportional to 31,840.02, 47,759.22 and 15,211.80

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Solution

The fourth proportional to 31,840.02, 47,759.22 and 15,211.80 is: 22,817.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,840.02 : 47,759.22 = 15,211.80 : x
  2. Step 2: Convert to fraction form
    31,840.02/47,759.22 = 15,211.80/x
  3. Step 3: Cross multiply
    31,840.02x = 47,759.22 × 15,211.80
  4. Step 4: Simplify right side
    31,840.02x = 726,503,702.80
  5. Step 5: Solve for x
    x = 726,503,702.80/31,840.02
  6. Step 6: Final answer
    x = 22,817.31

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1.5x scale

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.