Home / 31,772.17-43,845.60-19,835.47

Finding the Fourth Proportional to 31,772.17, 43,845.60 and 19,835.47

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Solution

The fourth proportional to 31,772.17, 43,845.60 and 19,835.47 is: 27,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,772.17 : 43,845.60 = 19,835.47 : x
  2. Step 2: Convert to fraction form
    31,772.17/43,845.60 = 19,835.47/x
  3. Step 3: Cross multiply
    31,772.17x = 43,845.60 × 19,835.47
  4. Step 4: Simplify right side
    31,772.17x = 869,698,083.43
  5. Step 5: Solve for x
    x = 869,698,083.43/31,772.17
  6. Step 6: Final answer
    x = 27,372.95

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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.