Home / 47,550.28-65,640.58-31,427.30

Finding the Fourth Proportional to 47,550.28, 65,640.58 and 31,427.30

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Solution

The fourth proportional to 47,550.28, 65,640.58 and 31,427.30 is: 43,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,550.28 : 65,640.58 = 31,427.30 : x
  2. Step 2: Convert to fraction form
    47,550.28/65,640.58 = 31,427.30/x
  3. Step 3: Cross multiply
    47,550.28x = 65,640.58 × 31,427.30
  4. Step 4: Simplify right side
    47,550.28x = 2,062,906,576.55
  5. Step 5: Solve for x
    x = 2,062,906,576.55/47,550.28
  6. Step 6: Final answer
    x = 43,383.69

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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.