Home / 31,883.63-47,817.95-13,145.09

Finding the Fourth Proportional to 31,883.63, 47,817.95 and 13,145.09

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Solution

The fourth proportional to 31,883.63, 47,817.95 and 13,145.09 is: 19,714.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,883.63 : 47,817.95 = 13,145.09 : x
  2. Step 2: Convert to fraction form
    31,883.63/47,817.95 = 13,145.09/x
  3. Step 3: Cross multiply
    31,883.63x = 47,817.95 × 13,145.09
  4. Step 4: Simplify right side
    31,883.63x = 628,570,951.55
  5. Step 5: Solve for x
    x = 628,570,951.55/31,883.63
  6. Step 6: Final answer
    x = 19,714.54

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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.